Kart Race Yearbook 2008

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3 Kart Race Yearbook th EDITION The contents of this book are copyright and must not be reproduced without the written consent of The Royal Automobile Club Motor Sports Association Ltd. ISBN All enquiries concerning motor sport should be addressed to: The Motor Sports Association Motor Sports House Colnbrook SL3 OHG Telephone: Fax: Website: Front cover illustration tbo (Picture: tba) Published by: The Royal Automobile Club Motor Sports Association Ltd. Printed by: DCW Penrose & Co Ltd, Staines, Middlesex. Advertising Manager: TRMG Editor: Joe Hickerton Publishing Editor: Ian R Davis

4 Contents Page No. Introduction 4 A CADET 1.0 Formula Cadet Comer Specific Regulations Honda Specific Regulations WTP Specific Regulations 10 B JUNIOR 1.0 Formula Rotax Junior Max KF Formula TKM Junior/Senior Formula Rotax Mini Max Formula Junior Blue Formula TKM 4 Stroke 30 C SENIOR DIRECT DRIVE 1.0 KF Rotax Senior Max KF Formula 100 National/K Honda Senior Formula Blue 42 D SENIOR GEARBOX 1.0 Formula 125 ICC (UK)/KZ2 (UK) Formula 125 Open Formula 250 National Formula 210 National 50 Appendix 1 Homologated Chassis Lists 52 2 Eligible Engines 54 3 Silencing 55 4 ABkC General Regulations 57 5 CIK/MSA Yearbook Articles (extracts) 65 6 Recognised Kart Clubs 69 7 Recognised Kart Associations/Groups 71 8 Licensed Kart Tracks 72 9 ARKS Club Examiners Championship Co-ordinators Championship Calendar Provisional Fixture Lists Kart Classes Summary Table 83 2

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6 Introduction Welcome to the eleventh (2008) edition of the MSA Kart Race Yearbook. We hope that all users will find it helpful and informative. Produced with the agreement and support of all kart associations and the kart trade it includes details of all nationally recognised classes. This yearbook is reviewed and revised each year and with an agreed intention towards an inbuilt stability. Copies are distributed to all MSA licensed kart competitors, officials and clubs and also included with Starting in Karting Packs. Additional copies may be obtained from the MSA at 8.50 each including postage. We welcome all practical suggestions for the next issue which should be directed to the MSA. How to use this book Classes are detailed in their prime form as defined by the sponsoring organisation followed by notes to describe additional regulations used by an association or championship, e.g. Cadet (Comer) is a MSA class; ABkC, BSA, ASKC, NKRA or commercial additional regulations are covered in the footnotes. Where junior and senior classes share significant commonality the main class regulations will be found in the junior section and differences for the senior class are identified in the text, e.g. Formula TKM. General competition, technical and safety regulations remain in the MSA Competitors Yearbook (Blue Book) which must be referred to in conjunction with the regulations reproduced herein and which takes precedence. Full details of international regulations are contained in the CIK Yearbook which should also be referred to for applicable classes. For convenience we have included relevant extracts from the draft 2008 CIK Yearbook where known. Competitors intending to enter International events or classes should obtain a copy of the CIK Yearbook and ensure up to date compliance. Regulation changes from the previous year are shaded. General Notes 1. Silencing. Sound level requirements for British karting are constantly under review. Competitors should ensure that their equipment conforms to the levels defined in MSA regulations or as amended by venue local requirements. Where appropriate additional regulations are given in Appendix Weights. All classes show minimum weights and these are defined as the minimum weight acceptable for the kart plus driver and equipment (race condition) at any time. Class weights may be amended upwards for club or championship events. Where such a change is detailed in these regulations this will be signified by an asterisk (*). 3. Class Categories. The following table details main kart race categories and their appropriate classifications. The classification provides guidance for clubs as to which classes may be amalgamated if required for race grids. It also provides guidance for the performance categories in which any new class should be made compatible. 4. Class Regulations. Queries on the class regulations should be sent in the first instance to the class promoter, as shown in the Affiliation section of each class. All clubs must specify the classes they offer in their supplementary or championship regulations with a reference to the MSA Kart Race Yearbook and their particular association s regulations, and have a reference to the source of the class regulations if found elsewhere e.g. TECHNICAL REGULATIONS. MSA 2008 Specific karting technical regulations apply together with the 2008 (insert your club s association) regulations within the 2008 MSA Kart Race Yearbook and the SR s for the meeting. ELIGIBLE CLASSES: All (insert your club s association) classes plus xx and yy are offered, except that Formula zz is not offered. The regulations for all classes offered may be found in the 2008 MSA Kart Race Yearbook. Additionally Formula?? is offered under MSA Regulation K 5, the class regulations are available from: (name and address of class promoter). This document has been compiled using the best available information. The MSA accepts no responsibility for any errors or omissions. 4

7 Class No/Category: Title: Includes: 1. International KF1, KF2, Libre, 100 National, 100/125cc two stroke (Senior) 100 National/165, Ecomoto*, and four stroke Rotax Senior Max, Clubman*, Biland* equivalents, single engine direct drive Clubman Formula TKM Extreme 2 Stroke & 4 Stroke, (Senior) Blue 11 to 16 years of age Junior Formula Junior TKM 2 Stroke/Intermediate & 4 Stroke, Junior Blue, Junior Clubman*, MiniMax 13 to 16 years of age Junior KF3, Rotax Junior Max 2. Senior Senior Honda, Twin or single engine World Formula* four stroke direct drive Junior Junior Honda* 3. Cadet Comer W60/S60 Cadet, Honda Cadet, Direct drive mini karts WTP Cadet for drivers up to 13 years of age Gearbox CIK Superkart Div 1 & 2*, Up to 250cc two stroke (Senior) 250 National, 250E* and equivalent four stroke engines with a maximum of 6 forward gears 125 Gearbox ICC, 125 Open, 125 Europa*, (Senior) Formula 210, Formula Rotax DD2* 13 to 16 years of age Junior Gearbox 85cc registered engines The following classes are recognised by the MSA as permitted classes and may have the complete class regulations published in future editions of the Kart Race Yearbook. Details are included above (*) to enable clubs to amalgamate with other classes. Where required, clubs must ensure that the MSA Competitors Yearbook K 5 approval is in place for the current year before including these classes in event regulations. Competitors should obtain confirmation from the event organising club that this approval is in place before submitting an entry. Formula Biland contact: Saxon Motorsport, 2a Ramsden Road, Rotherwas Industrial Estate, Hereford HR2 6NP World Formula contact ABkC ( for regulations). Formula UKC (Clubman Multi Engine 125cc TaG) Senior and Junior contact: skenchington@btinternet.com or Web Formula Europa contact: RPM Motorsport, Redhouse Service Station, London Road, Ware, Herts SG12 9LY or rpm.motorsport@lineone.net Formula Rotax DD2 contact JAG Engineering, 1 Windsor Business Units, Wealden Business Park, Garningham Road, Jarvis Brook, Crowborough, East Sussex, TN6 2JJ Formula 250E contact Formula E Development Group, Trevor Cryer. Contact via ABkC. Easykart contact Club 100 Racing Ltd., Ryehouse Kart Raceway, Rye Road, Hoddesdon, Hertfordshire, EN11 0EH, Junior Gearbox contact ABkC ( for regulations). Honda Junior contact ABkC ( for regulations). Superkart contact Mr Ian Rushforth, 6 Mansfield Avenue, Quorn, Loughborough, Leicestershire, LE12 8BD

8 A1.0 Group Cadet A1.1 Class Formula Cadet Affiliation MSA A1.2 Introduction. Starter class from 8 years of age with maximum retail prices for basic chassis and engine. Chassis, brakes and engine are homologated with the MSA. Details of homologation requirements are available from the MSA. A1.3 Chassis. MSA homologated Cadet chassis only. The chassis must remain as homologated in all respects and may only be subject to approved modifications for safety reasons. A chassis manufacturer will be permitted to homologate one chassis model for any three year period and homologations will last for a total of three successive periods (nine years). The current homologation period for chassis and brakes commenced ; the next period will commence A full list of current homologated chassis is included in Appendix 1. A1.3.1 Modifications. The only additions permitted, along with modifications solely concerned with their fitment are: Seats, Nassau Panels, Front Fairing and Ballast to achieve the required weight or for repair purposes. Any non-homologated part, except as stated above, may not be added. A1.3.2 Prohibited Materials. The following are specifically prohibited: Parts made of Kevlar, carbon fibre (except for seats and floor tray), magnesium and titanium. A1.3.3 Dimensions. Wheelbase: 900mm ± 5mm Overall Length: 1700mm (max.) Track: Min: 2/3 wheelbase Max: 1200mm Tubing: 28mm or imperial equivalent, unpainted (BSI tolerance allowed) Steering: Castor, camber and king-pin inclination angles must be fixed as homologated A1.3.4 Floor Tray. There must be a rigid, flat floor from the seat to the front and side chassis members, secured to them so as to prevent the driver s feet from sliding off. The rear-most point of the floor tray must not project beyond the middle of the chassis cross rail located under the front of the seat. Any perforation of the floor other than for the attachment of ballast and other applicable accessories must be a production feature and be homologated as such. If perforated, the holes must not have a diameter exceeding 10mm. A1.3.5 Side Pods and Bumpers. Must conform to MSA Yearbook regulations. A1.3.6 Front Fairing. Must conform to MSA Yearbook regulations except that for the Cadet class the vertical front surface referred to in K 183 must be a minimum of 250mm x 70mm, or be an approved design specifically permitted by the MSA. A1.3.7 Torsion Bars. Karts homologated with rear torsion bars must be raced with the bars in place and locked at all times. Front and side torsion bars are not permitted. A1.3.8 Seat. Seat is free. Additional bolt on seat stays/mountings are permitted to a maximum of one per side, position is free. Bolt fixings must be used at each end of the seat stays. A1.3.9 Eligibility. The complete chassis in its homologated form, with accessories and equipment as homologated and the engine as supplied by the manufacturer (or importer where applicable) are the only combination which will be allowed to race. The registered manufacturer may apply for changes to accessories, such as brakes, on the grounds of safety. Such changes will only be acceptable with the written approval of the MSA. A1.4 Engine. See class specific regulations below. A1.5 Transmission. The drive must be direct, so that the crankshaft and rear axle are connected by a single length of chain. All methods of chain oiling and greasing while the kart is in motion are forbidden. A guard must be fitted covering the transmission in compliance with MSA Regulations (see K 214) 6

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10 A1.5.1 Axle. A solid, magnetic parallel bar of 25mm diameter. Horizontally split quick release bearing mountings are not permitted. A1.5.2 Sprockets. Rear sprockets of 219 pitch. Size is free. A1.6 Brakes. Mechanical or hydraulic operation, solid disc, operating on the rear axle only. No interruptions of the solid disc in the area swept by the brake pads. The brake linkage must be duplicated. As from 2004 all homologated chassis must use an MSA homologated brake system as specified for the particular homologation, or its homologated option brake. Changes may be made to the brake homologation on safety grounds with the written agreement of the MSA. A1.7 Wheels. Wheels may be of two piece or mono aluminium construction, i.e. spun aluminium, diecast aluminium or sandcast aluminium. Hubs may be separate or integral. A1.7.1 Tyres. Dry Dunlop SL3 Front 10 x 3.6 x 5, Rear 11 x 5 x 5. RAC moulded on the side wall. Wet Dunlop KT3 Front 10 x 3.6 x 5, Rear 11 x 4.5 x 5. RAC moulded on the side wall. A1.8 General. The practice of lifting karts on the dummy grid or start line while the engine is running is prohibited. A1.8.1 Retail Prices. All prices will be subject to an agreed yearly increase. The retail price of the new assembled kart chassis as homologated, including brake, chain guard, sprocket carrier, axle, sprocket, tank, seat and wheels, but excluding tyres and fairings must not exceed VAT. A1.8.2 Weight. See class specific regulations below. A1.8.3 Number Plates. See class specific regulations below. A1.8.4 Age. From the 8th birthday to the 31st December of the year of the 13th birthday (see K 115). A2.0 COMER SPECIFIC REGULATIONS Affiliation MSA A2.1 Engine. Comer W60 60cc two-stroke engine equipped with recoil starter, ignition, centrifugal clutch, carburettor, air box and exhaust system. The power unit, as raced must conform in all aspects with the homologation fiche and must be stamped with the official MSA stamp. Compliance with the homologation fiche may be checked at any time during an event. No addition of, or other change of material is permitted. No modification or tuning for whatever purpose is allowed except for those listed below or where expressly permitted by the MSA. Where specific dimensions are not given for the engine and its supplied accessories in the homologation fiche, the dimensions will be checked against a control engine held by the MSA. Procedures for taking measurements and details of measuring gauges are defined in the MSA Measurement Guidelines document available from the MSA on request. The following repairs are specifically permitted: (i) Repair of damaged threads in the crank cases and cylinder with helicoils. The repair of cylinder head spark plug thread is not permitted. (ii) Should the throttle cable bracket on the crankcase be broken the original bracket may be welded back in its original position. The only replacement parts which will be allowed are those supplied by the manufacturer and listed on their parts list for the W60 60cc homologated engine (except for plug cap which may be replaced by parts of other commercial manufacture and which must be directly equivalent). The only spark plugs permitted are either Bosch W2AS or Bosch W08AS. Engine ignition timing is free, provided that when it is set and locked timing cannot be varied at all when the kart is in motion. A2.1.1 Carburettor. As from the carburettor has been replaced by a new model (Tryton ZC001) as per the 2008 homologation fiche for the Comer W60 engine. It must remain unmodified and conform in all aspects to the official manufacturers fiche as approved by the MSA. 8

11 The retail price for the 2008 carburettor will be 99 + VAT. It is permitted to use the Tillotson carburettor at club meetings until unless otherwise stated in Championship Regulations. A2.1.2 Engine Lubrication. Engine lubricant must be a synthetic oil meeting the requirements of the JASO FC standard to ensure that the exhaust emissions meet the standards set down by the MSA. The only two oils legal for use as engine lubricant in the W60 Cadet class are: Kart Tech FC produced by Elf - retail price VAT per litre. Super FC produced by Shell - retail price VAT per litre. Both products have been extensively track and dyno tested to be approved by the UK Comer distributor as suitable for use with the Comer W60 engine, they will be distributed by both Atol and Zip Kart. These oils will be supplied with a trace indicator to enable identification by analysis. A2.1.3 Engine Management. Engine management equipment/systems are prohibited. A2.1.4 Engine Sealing. All engines must be sealed with an official seal to prevent modification and will be issued with an official identity card. The numbers inscribed on the engine and seal must correspond with those on the identity card at all times, it is the competitors responsibility to ensure that this is the case. Only authorised dealers will be issued with seals for use during maintenance of the engines. The identity card must be filled in and signed by an authorised dealer. The engine must be presented at scrutineering with the official class seal intact and the identity card lodged with the scrutineer, if requested to do so. The card must be collected by the competitor at the end of the race meeting. Should a seal become damaged, loose or lost during racing it must be reported to the meeting s scrutineer before leaving parc fermé. To allow the competitor to continue racing the scrutineer may, at their discretion, re-seal the engine with a temporary official MSA seal, the details of which must be entered on the identity card and signed by the scrutineer. The engine must be taken to an official dealer with the MSA seal intact to be re-sealed with an official class seal before competing at the next race meeting, unless specific permission is granted by the MSA. A2.1.5 Engine Modifications. The following minor modifications/additions are permitted: (i) A rounded, flat washer may be fixed into the carburettor adjusting screw slot to facilitate fine adjustments under load. Alternatively a Tillotson T bar or a Comer adjusting screw may be used. A short flexible extension may be fitted to the choke lever in order to ease adjustment. No other additions and/or alterations to the carburettor are allowed. (ii) A wet box or splash guard may be attached to the W60 air box providing this in no way modifies the shape or size of the intake trumpet or creates a ram effect. The W60 air box cannot be modified to aid in the attachment of the wet box and the attachment must be of a non-permanent type, i.e. tape or cable ties. (iii) The carburettor needle, valve seat and pump diaphragms may be replaced with listed manufacturer spare parts. Tillotson carburettors with series number 227 are not permitted. (iv) Main bearings part numbers 6202C3 or 6202C4 can be used. They must have 8 balls with steel cages. (v) A gauze filter may be fitted on the inlet lug. No other modifications/additions can be made unless expressly permitted by the MSA. A2.1.6 Engine Price. The retail engine price when new, including carburettor, ignition, clutch, engine sprocket and complete exhaust system, when sold in the UK will be VAT. The Comer W60 has a manufacturer s undertaking to be available until the year A2.2 Weight. Minimum 99kg, including the driver. A2.3 Plates. Yellow with black numbers. The numbers must be of the Classic type as described in K 196. A3.0 HONDA SPECIFIC REGULATIONS Affiliation ABkC A3.1 Chassis Modifications. The floor mounted fuel tank may be removed if the integral Honda fuel tank is retained. 9

12 A3.2 Engine. One Honda engine of the GX160T1 QHQ4 or GX160UT1 QHQ4 designation is to be fitted. Engine types must comply with the ABkC Honda GX160 Technical Regulations Version 3 of January 2008 or as subsequently modified, which are available on the ABkC website and direct from ABkC at Stoneycroft, Godsons Lane, Napton, Southam CV47 8LX. Honda will not accept warranty claims on engines used in any practice or racing capacity. A3.2.1 Engine Modifications. Only modifications/additions in compliance with the Ratpro Honda GX160 Technical Regulations are permitted. A3.3 Weight. Minimum 100kg, including the driver. A3.4 Plates. Yellow with red numbers. The numbers must be of the Classic type as described in K 196. A4.0 WTP SPECIFIC REGULATIONS Affiliation Commercial: John Mills Engineering Ltd./ABkC A4.1 Engine. WTP 60 B1 (original model) or B5 (electric starter option model) two-stroke engine equipped with recoil starter, fixed ignition, centrifugal clutch, carburettor, air box and exhaust system. The power unit, as raced must conform in all aspects with the homologation fiche. Compliance with the homologation fiche may be checked at any time during an event. No addition of, or other change of material is permitted. No modification or tuning for whatever purpose is allowed except for those listed below or where expressly permitted by the MSA. Where specific dimensions are not given for the engine and its supplied accessories in the homologation fiche, the dimensions will be checked against a control engine held by the importer. The only replacement parts which will be allowed are those supplied by the manufacturer and listed on their parts list for the WTP 60cc engine (except for spark plug of the same type and plug cap). The only spark plugs permitted are: Nippon Denso Iridium IW24, IW27, IW29, IW31 NGK B8EG, B9EG, B10EG, B8EGV, B9EGV, B10EGV, Iridium BR8EIX, BR9EIX, BR10EIX. Other spark plugs may be added to the list from time to time. The WTP 60 B5 model, with electric starter, must run at all times with the exhaust restrictor, battery and starter motor fitted and with the starter ring gear fitted to the clutch. The restrictor must be as supplied by John Mills Engineering and comply with the official fiche, no modifications allowed. Exhaust flange restrictor, 14mm maximum round bore, all exhaust gases must pass through this restrictor. The exhaust must be fitted with one standard WTP exhaust gasket between the cylinder and the exhaust restrictor. The inlet must be fitted with one standard paper gasket each side of the unmodified plastic thermal heat spacer. Any further performance limiting method as announced by John Mills Engineering with the approval of the MSA must be fitted at all times. A4.1.1 Engine Management. Engine management equipment/systems are prohibited. A4.1.2 Engine Sealing. All engines must be sealed with an official seal to prevent modification and will be issued with an official JM identity card. The numbers inscribed on the engine and seal must correspond with those on the identity card at all times, it is the competitors responsibility to ensure that this is the case. Only authorised dealers will be issued with seals for use during maintenance of the engines. The identity card must be filled in and signed by an authorised dealer. The engine must be presented at scrutineering with the official class seal intact and the identity card lodged with the scrutineer, if requested to do so. The card must be collected by the competitor at the end of the race meeting. Should a seal become damaged, loose or lost during racing it must be reported to the meeting s scrutineer before leaving parc fermé. To allow the competitor to continue racing the scrutineer may, at their discretion, re-seal the engine with a temporary official MSA seal, the details of which must be entered on the identity card and signed by the scrutineer. The engine must be taken to an official dealer with the MSA seal intact to be re-sealed with an official class seal before competing at the next race meeting, unless specific permission is granted by the MSA. 10

13 A4.1.3 Engine Modifications. The following modifications/additions are permitted: (i) A small bracket for the support of the exhaust system. (ii) The use of a small inline fuel filter with gauze. (iii) The fitment of a cable stop/throttle adjuster to the throttle bracket. (iv) The air box may be turned from the original straight inlet upright position only when wet tyres are in use. (v) A WTP gauze filter may be fitted on the inlet lug. (vi) The carburettor needle valve, diaphragm and tension spring may be replaced by Tillotson parts of the same type/dimensions as original item. (vii) The main silencer may be painted with heat resistant paint. Black colour only or externally hand polished, but not chrome plated. No other modifications/additions can be made unless expressly permitted by the MSA. A4.1.4 Engine Price. The retail engine price when new, including carburettor, ignition, clutch, engine sprocket and complete exhaust system, when sold in the UK will be VAT. A4.2 General. A working ignition kill switch must be fitted and marked with a blue triangle to assist marshals in the event of an incident. A4.3 Weight. Model B1: minimum 93kg, including the driver. Model B5 (with electric starter): minimum 103kg, including the driver. A4.4 Plates. Green with white numbers. The numbers must be of the Classic type as described in K 196. B1.0 Group: Junior, direct drive B1.1 Class: Formula Rotax Junior Max Affiliation: Commercial: J.A.G. Engineering and ABkC B1.2 Introduction: This class endeavours to provide performance approaching that of KF3 combined with low running costs and low noise levels. Lap times are similar to those of KF3. It is expected that the class will continue to evolve and the promoters reserve the right, with the agreement of the MSA, to alter the technical regulations at short notice to ensure safety of drivers, fairness of competition, economy and the wishes of competitors. Enquiries to J.A.G. Engineering, 1 Windsor Business Units, Wealden Business Park, Crowborough, East Sussex TN6 2JJ, Tel: B1.3 Chassis: Any chassis conforming to MSA Direct Drive Regulations. B1.4 Engine: The only engine permitted in this class is the Rotax FR125 JUNIOR MAX. The Junior Max adheres to the Senior Rotax FR l25 Max fiche plus extensions for the Junior including the cylinder differences. The cylinder is to be of non-power Valve type. The engine is a single cylinder, liquid cooled, reed valve two stroke. All engines must be sealed between cylinder, crankcases, cylinder head and the reed valve block with an official seal to prevent modification. All engines are issued with an official identity card. It is the competitors responsibility to ensure that the numbers inscribed on the engine and seal must correspond with those on the identity card at all times Only authorised dealers will be issued with seals for use during maintenance of the engines. The identity card must be filled in and signed by an authorised dealer. The engine must be presented at scrutineering with the official class seal intact and the identity card lodged with the scrutineer. The card must be collected by the competitor at the end of the race meeting. (At club race meetings it is not compulsory for competitors to lodge the identity card with the scrutineers. The identity card must be available for inspection by the scrutineers at any time during the race meeting) Should a seal become damaged, loose or lost during racing it must be reported to the meeting s scrutineer before 11

14 leaving parc ferme. To allow the competitor to continue racing the scrutineer may at his discretion reseal the engine with an official MSA seal. The new seal No. must be entered in the engine s identity card and signed by the scrutineer. The engine must be taken to an official dealer with MSA seal intact to be re-sealed with an official class seal before competing at the next race meeting. B1.4.1 Modifications: The engine and its ancillaries may not be modified in any way unless otherwise indicated by these regulations or the official MSA fiche. UNLESS IT STATES THAT YOU CAN DO IT YOU CANNOT!!! The engine must be raced in standard form as manufactured and supplied by Rotax unless otherwise stated. Filing, grinding, polishing, surface treating, machining or lightening of any component is forbidden unless otherwise stated. The addition of material to any component is not allowed unless otherwise stated. All parts used in or on this engine must be of original manufacture or source as supplied by Rotax for the FR125 Max unless otherwise stated. The engine is to be used with air box, carburettor, fuel pump, radiator, wiring loom, ignition system and exhaust system as supplied by Rotax unless otherwise stated. Position and method of mounting the battery, wiring loom and exhaust system are free providing they are securely fixed to the satisfaction of the meeting s scrutineers and in accordance with MSA Regulations. Filing of crankcase to allow easy fitting of water connection is allowed. Fitting of helicoils and inserts to repair damaged threads is allowed, except for the spark plug thread in the cylinder head insert, providing such repairs are not used to derive any benefit other than rectification of damage. Minor damage to the cylinder or crankcase may be repaired by welding but only to restore the component to the original specification. The use of thermal barrier coatings/ceramic coatings on or in the engine or exhaust system is not allowed. Replacement connectors to repair wiring loom are permitted. Repairs to starter motor are also allowed. B1.4.2 Carburettor: Dell orto VHSB 34 QD or QS All parts of the carburettor including the body are to be unmodified and run as supplied by Rotax. The carburettor must have VHSB 34 (cast in body) QD or QS (stamped on body). All parts must comply with the official fiche. The only adjustments allowed are the main jet, external air screw, throttle stop adjustment screw, and needle position on the five grooves provided. Needle jet atomiser FN 266. Choke jet 60.Idle jet 30, idle jet emulsion tube 30. Needle K27 or K98 (Rotax Part No ). Float needle valve 150. Slide 40. Floats 5.2gr. Atomiser Type 2. Alternative idle jet 60, idle jet emulsion tube 60, and 3.6gr floats may be used. Idle jets, idle jet emulsion tubes and floats may not be mixed and only used in one of the two following combinations:- Combination 1: Idle jet 30, idle jet emulsion tube 30, floats 5.2gr; Combination 2: idle jet 60, idle jet emulsion tube 60, floats 3.6gr. The venturi must have 34 cast and 12.5 or 8.5 stamped on the top of the venturi. Throttle cable and adjusters are free. It is permitted to use a single length of vent tube looped across the two air vents of the carburettor with a hole or slot cut in the side of the vent tube at the top of the loop. B1.4.3 Fuel Pump Only Mikuni - Fuel Pump DF Part No may be used. The fuel pump must be fitted to the bottom or side of the standard air box bracket. Only a single length of pulse tube from crankcase connector to fuel pump may be used. Only a single length of fuel line from fuel pump to carburettor may be used. It is permitted to use an in-line fuel filter as supplied by Rotax between the fuel tank and fuel pump. An Internal fuel tank filter is also permitted. No restrictors, fuel returns or additional reservoirs are permitted. B1.4.4 Intake Silencer: Type 1 or Type 2 may be used. Type 1 must be used as supplied by Rotax for the FR125 Max engine unmodified, except for the bottom half of the air box, where the lug support ribs on the longitudinal side may be removed to allow the fitting of the air box support bracket. It is also permitted for the airbox lower half (type 1 only) to have a single 8mm maximum diameter hole positioned in a central location using the area of the injection mould marks as a guide. 12

15 Type 2 must be used unmodified as supplied by Rotax for the FR125 Max engine. Air box type 1 or type 2 must be used with its filter and all component parts in place. The two halves of the airbox must be securely screwed together using 4 M6 screws. All 4 screws must be sufficiently tightened to securely clamp the two halves of the airbox together. a) In dry race conditions the air box MUST be positioned with inlet trumpets to the bottom of the box. The air box must be securely fitted in a manner to prevent rotation. b) In wet conditions i.e. only when declared a wet meeting by the Clerk of the Course the air box may be fitted in any position c) If the meeting is declared open: Kart on wet tyres position free; Kart on Dry tyres fix as dry d) It is permitted for the airbox lower half to have a single 8mm maximum diameter hole positioned in a central location using the area of the injection mould marks as a guide. B1.4.5 Exhaust System: Only TYPE B Part No exhaust may be used. The exhaust system and silencer may not be modified in any way except for the pop rivets securing the silencer end plate may be replaced with screws. The use of a jubilee clip to secure the end plate pop rivets or screws is allowed. It is permitted to paint the exhaust system with black paint. The use of any other coating or plating is not allowed. It is permitted to make minor repairs by welding or braising to the exhaust system providing there are no alterations to the original dimensions. B1.4.6 Cooling System: The radiator must be fitted to the right hand side of the engine using standard hoses and connections as supplied by Rotax. Engines using the thermostat cooling system must use the system in its entirety which comprises of thermostat head cover, radiator, radiator cap, radiator hoses, steel crankcase water hose connecting tube and radiator bracket. It is permitted to use the thermostat cooling system with or without the thermostat in place. The use of alternative hose clips and screw fixings are permitted. Blanking of the radiator is free providing it does not necessitate the modification of the original components other than simple attachment. Minor repairs to the radiator are allowed. B1.4.7 Ignition unit: DENSO digital battery ignition, variable timing with no adjustment. Ignition coil must have and DENSO moulded on the case. The ignition coil must have three pin connection. The ignition coil must be mounted by means of two original rubber mounting blocks or equivalent to the gearbox cover. In the case of chassis component interference with the original mounting position it is permitted to relocate the ignition coil by the use of an extension bracket. The extension bracket must be attached to the original gearbox cover mounting holes. The ignition coil must be mounted by means of two original rubber mounting blocks or equivalent. Spark plug cap must be marked with NGK TB05EMA. Ignition switch can be either On-Off type, part number , or Automatic fuse type, part number Any make of battery is permitted provided it is of the same specification as supplied by Rotax for the FR125MAX 12v/6.5Ah, 12V/7.2Ah or 12v/9Ah. FIAMM-GS type FG20651, FG20722, FGHL20722, FGH20902,YUASA YT7B-BS and ROTAX BATTERY FX7-12B recommended. B1.4.8 Spark plug: The only spark plugs permitted are as listed and must be unmodified with sealing washer in place. The list of spark plugs is as follows: Denso IW24, IW27, IW29, IW31. NGK BR8 EG, BR9 EG, BR10 EG, B8 EG, B9 EG, B10 EG, B8 EGV, B9 EGV, B10 EGV, BR8 EIX, BR9 EIX, BR10 EIX. Other makes/types may be added to this list by J.A.G.; details will be published in official bulletin. B1.5 Transmission: Direct from the engine to the rear axle via a single length of chain. The clutch supplied with the engine must be used with its standard components. The clutch must engage at a maximum engine speed of 3000 rpm. See K 214. B1.6 Brakes: Hydraulic disc brake operating on rear wheels only. B1.7 Tyres: Dry: VEGA SL8 Marked J.A.G. 10 x front, 11 x rear Wet: VEGA W2 Marked J.A.G. 10 x front, 11 x rear 13

16 B1.8 General. An ignition kill switch must be fitted and must be identified with a blue triangle to assist marshals in the event of an incident. B1.8.1 Retail price: Not applicable. B1.8.2 Weight: Minimum of 148 kg including driver at all times. Maximum kart weight without driver is108kg. B1.8.3 Number Plates: Red with white numbers. K 196 applies. B1.8.4 Age: 13th birthday to 31st December of the year of 17th birthday. B1.8.5 Non-Technical Items. The use of alternative fasteners, washers, hose clips, fuel and pulse line is allowed unless otherwise specified. The use of additional and alternative earth straps is allowed. The use of additional air box support brackets, radiator support brackets, coil-mounting brackets, chain and clutch guards is allowed providing the fitting of these does not necessitate modification of the original components. B1.9 Data logging. Data logging is permitted; data logging systems with or without memory may be used. It is only permitted to take readings of engine rpm., engine water temperature, speed of 1 wheel, an X/Y accelerometer, lap times and split lap times. The engine water temperature sensor may only be fitted in the position provided in the cylinder head cover for this attachment. The rpm, may only be recorded via a sensor on the HT lead to sense spark plug pulses. The HT lead must remain a single length from ignition coil to spark plug cap. The fitting of these sensors is only permitted providing there is no modification to the original engine components. B2.0 Group Junior B2.1 Class KF3 Affiliation CIK/MSA B2.2 Introduction. This Class is included in the Super One Series Championship and is the MSA British Championship for junior direct-drive. The class mimics the CIK European class in all respects except for rear bumper, maximum kart width dependent on tyres, where a tyre is selected from the CIK list for use in the class. All CIK references refer to the CIK Yearbook unless otherwise specified. This class has superseded the JICA class. B2.3 Chassis. B2.3.1 Must comply with MSA Safety and Technical Regulations. B2.3.2 CIK homologated for KF3 or JICA. A chassis once homologated is eligible for six years use. New CIK homologated chassis have been introduced from which will be eligible for this class. The maximum width of the kart is 1400mm if the rear slicks are 7.1 width, otherwise it must be 1360mm (this is a variation on the CIK regulation). B2.3.3 Bodywork. CIK technical regulations and currently CIK homologated. When wet tyres are fitted only CIK regulations apply. B2.3.8 Bumpers. As per CIK technical regulations and currently CIK homologated. CIK homologated rear protection system or MSA specification rear bumper is permitted in this class. B2.4 Engine. B2.4.1 Single cylinder 125cc engine CIK homologated for use in KF3 as per Article 19, base homologation from KF4 as per CIK Article 18. B Carburettor. CIK Homologated butterfly carburettor with a maximum venturi internal diameter of 20mm, comprising 2 jet adjustment screws. The only carburettor permitted is the one as designated for the CIK-FIA championship. B Ignition. Homologated ignition system with a specific limiter at 14,000 rpm. Any electronic system allowing an auto-control of the parameters of function of engine while the kart is in motion is forbidden An engine cut out switch is mandatory the switch must be located in such a way 14

17 that it is possible for the driver normally seated in his driving position to trigger it. A sealed (maintenance free) battery must be fitted. B Exhaust. Specific monotype exhaust, CIK homologated as per CIK Article 18 and 19. Additional silencer as per CIK Technical Drawing 12 is mandatory. MSA Yearbook noise levels apply. B Intake Silencers. CIK homologated with filter, maximum intake diameter(s) 23mm. B Mounted airtight to the carburettor, mounting method free. B Fuel Tank. as per CIK regulations. B2.5 Clutch. As per CIK Article 18. Centrifugal engagement of the clutch must occur before an engine speed of 5000rpm has been attained. An efficient protection (made of aluminium or plastic material) covering the centrifugal clutch but leaving free access to the chain or belt must be fitted. B2.5.1 Transmission. As per CIK regulations K 214 applies. B2.6 Brakes. In accordance to CIK regulations and must be CIK homologated. B2.7 Tyres/Wheels. B2.7.1 Wheels are free. It is compulsory to use safety screws to prevent the tyre from leaving the rim (external part only). B2.7.2 Slick - Bridgestone YGB, Front 10 x 4.5 x 5, Rear 11 x 7.1 x 5 (or 11x6.50x5 if specified in championship regulations in which case the maximum kart width is 1360mm), MSA moulded on the sidewall. Wet - Bridgestone YEJ Font 10 x 4 x 5, Rear 11 x 6 x 5. B2.8 General. B2.8.1 Retail Price. Not applicable B2.8.2 Weight. Minimum 145kg with driver at any time. The minimum weight of the kart (without fuel) to conform to CIK regulations. Maximum kart weight without driver is 105kg at any time. B2.8.3 Plates. Yellow plates with black numbers. K 196 applies. B2.8.4 Age. 12th birthday to 31 December of year of 17th birthday. Minimum licence grade Kart National A. Drivers who have not reached their 13th birthday must provide evidence that they have held a National A licence for at least 12 months prior to competing in this class. B2.9 Notes. B2.9.1 Data Logging is permitted, any information logged may be viewed on request by the scrutineers. B2.9.2 Homologation fiche copy and other eligibility documents regarding the equipment being used must be made available by the competitor to the scrutineers on request. B2.9.3 Sealing of engines at scrutineering to follow CIK and/or MSA practice B3.0 Group Junior and Senior B3.1 Class Formula TKM Affiliation Commercial Tal-Ko/ABkC B3.2 Introduction. Commercial economy class for juniors and seniors with chassis and engine price control. Super One ABkC Championship class. The Junior age classes have been modified into three weight/restrictor size bands and it is intended that normally all three bands will race together for the same trophies with blue number plates. Where a club has sufficient numbers they may if they wish run different weight/restrictor bands of the Junior class on separate grids. The new Junior Extreme class is introduced as a premier championship class which it is hoped will build in strength into a club class. The optional use of clutches for all TKM classes is permitted (mandatory for Junior Extreme). All 15

18 seniors should now be on Extreme class engines, though any that are not should race within the normal grid. The class regulations have been developed by Tal-Ko with the help of Formula TKM drivers, the BKIA, and the ABkC. The control of the class regulations rest with Tal-Ko and these regulations are printed with the permission of Tal-Ko. The regulations are the same as those published by Tal-Ko. Additional regulations for the ABkC follow the main text. Further copies of the full regulations are available from Tal-Ko, 54 Sunderland Road, Sandy, Bedfordshire SG19 1QY. Tel While long term stability is at the heart of the classes, in the interests of fairness, clarity, safety, and drivers, Tal-Ko reserves the right to agree with the MSA clarifications and changes to regulations at short notice if required. B3.3 Chassis. B3.3.1 Homologated chassis with side pods and front fairing. Each manufacturer may only produce two homologated chassis at any one time. When a manufacturer already has two homologated chassis, if he homologates a new design, he cannot continue to produce chassis to the old homologation. From a new chassis homologation period came into force. Manufacturers may only produce and sell a maximum of two homologated model styles at any one time. All karts must carry appropriate chassis markings. Reference in this document to 2007 homologation karts means any kart listed in the appendix of karts covered by the 2007 homologation period. B3.3.2 Drivers may compete in any homologated chassis that appears in Appendix 1, providing it meets all other requirements. The next homologation period will commence All chassis made after must carry the official Formula TKM sequential plate securely riveted to the brake side bearing hanger together with the manufacturer's stamped chassis number. These sequential plates are unique to each kart, non transferable and must only be applied by the manufacturer at the time of manufacture. Karts under the 1998, 2001, 2004 and 2007 homologation list must not have detachable plates carrying the manufacturer's chassis number and year of manufacture. Chassis number must incorporate the year of manufacture. In the case of lost/damaged sequential plates, a special procedure is used to issue replacements via the manufacturer. B3.3.3 Chassis to be constructed from magnetic steel tubing, cross section free. The method of welding/brazing is free but for all main chassis joins welding/brazing is obligatory - i.e. no clamping, sliding members or torsional adjustments including additional bolt-in torsion bars. The use of any type of hydraulic or similar damping device for any purpose is specifically prohibited. B3.3.4 Engine must be mounted to the right hand side, driver seated facing to the front. B3.3.5 The rear axle must be of parallel magnetic steel, 30mm nominal diameter, with hub retention. The axle can be either solid or hollow with a minimum nominal parallel wall thickness throughout its length of 5mm. It must be supported in two bearings only, using any type of bearing and retention method including cassette type. No other bearings or stiffening devices may be attached to the rear axle for any purpose. It is permitted to use circular collars around the rear axle immediately next to the axle bearings to prevent axle movement. They must not exceed 16mm in width and must be fitted for the sole purpose of axle location. It is permitted to semi-drill the axle for grub screw location. B3.3.6 Rear axle quick release fittings are permitted. Hubs may overhang the ends of the rear axle providing they are expressly designed to do so. Bearing spacers or adapters are permitted. Adjustable rear ride height not permitted. Use of non original parts to effect changed rear ride height not permitted. Ride height axle height position as homologated. B3.3.8 The steering must have non-adjustable castor and camber angles. Castor and camber angles of the chassis must be as homologated. Steering column may have more than one hole which can be utilised for twin-hole Ackerman type steering operation. Stub axles may contain more than one bolt hole in their drag arm. Any hole may be used. Stub axles must be as supplied and fitted to new karts by the manufacturer homologating the kart. In other respects such as length of axle shaft and its angle, and the drag arm length and attachment holes, the stub is free. The king pin bolts must be centrally positioned in both the frame stub axle mounts and stub axles. 16

19 The position of the holes must be non adjustable and permanently mounted. Detachable hole inserts not permitted. B3.3.9 Front ride height adjustment is permitted by movement of washers/spacers between the frame stub axle mounts and stub axle. On 1998, 2001, 2004 & 2007 homologated chassis the maximum permitted adjustment by this method is 12mm. No modifications may be carried out to the homologated design to achieve or increase this. B All karts must have the steering column mounted in such a way that even if the bottom retaining bolt is removed it cannot pull free from its lower bearing. B The only additions permitted to homologated chassis are: Equipment to meet latest MSA safety regulations, seat and a Nassau panel, along with the mountings solely concerned with their fitment. The following must not be added: Rear, front or side torsion bars, or any parts not homologated other than the exceptions indicated in these regulations. B The following parts are specifically prohibited: Components made from Kevlar, Carbon Fibre, Titanium or other similar exotic materials, other than for the seat and floor tray which is optional. Magnesium front and rear wheel hubs, engine mount, brake disc hub, sprocket carrier and steering wheel mounting boss may be used. The use of plastic or similar materials for components such as wheels, wheel hubs/bosses, sprocket and brake disc carriers is expressly forbidden. B Additional bolt on seat stays/mountings are permitted position and style free. B Use of CIK homologated crash tested sidepods and front fairing is mandatory and must conform to MSA technical regulations. It is permitted to modify the bodywork mounting points on the chassis to accept CIK crash tested bodywork but it must be undertaken in a professional manner. Karts homologated for the period inclusive are exempt from the requirement to fit CIK crash tested bodywork for 2008 only and in these cases where a kart is fitted with a traditional front bumper incorporating two vertical front uprights it is permitted to make use of the CIK front fairings. In this case, as long as the two vertical uprights remain in place, the requirement for an aluminium or steel securing block as per MSA rule K 156 is waived and the fairing may be attached to the kart by any safe and secure method in two places, not necessarily the CIK type clips. Sidepods may incorporate suitable holes for starter shaft, airbox trumpet, etc where MSA rules permit. B Front and rear bumpers must comply to MSA Technical Regulations. Neither may incorporate adjustable torsion by design. Bolt in type torsion bars are specifically prohibited. Front bumper must not use rubber, nylon or similar material in its fastenings/mountings. Rear bumper may use rubber, nylon or similar material for a maximum of two of its fastenings/mountings to the frame but may be secured by more than these two fixings and may for example have bracing struts to the axle housing providing these were part of the original homologation. B Drivers may make use of tank tape, cable ties, thin wire or throttle cable type bowden cable in ensuring that items such as exhaust, bumpers, electrical wiring, chain guard, etc. do not come off during the course of racing. One or more fixings may be used, however the item used must only be there for secondary security and reliability purposes and must not be attached in such a manner that it affects torsional adjustment of the kart or provides any other performance advantage. B Seat type is free including material. Use of commercially available and manufactured variable rigidity adjustment systems for seats is permitted subject to the following criteria. The device must be mounted to the seat itself and must not be attached or have contact with the seat mounting points or chassis. It is not permitted to use home constructed non-commercially available torsional adjustments. B Floor tray shape and material free but must comply to MSA Technical Regulations. Aluminium, plastic or other composite type floor trays may be used providing they provide suitable protection. Rubber mountings may be used. It is permitted to drill additional holes for the specific purpose of mounting such items as pedal heel stops and fuel tank, and access hole for steering column lower location nut, provided that the holes are restricted to the minimum size and number required to meet the purpose. They must not cause undue weakening of the floor-tray at critical points. It is permissible to use suitable size metal, rubber or other washers in the fitment of the above 17

20 items. It is permitted to use floor trays with decorative holes or slots so long as they are provided by the manufacturer and that the holes etc are in the raised sector(s) of the tray. B The fuel tank must be floor tray mounted beneath the steering column, forward of the driver. Type free. Fuel filter permitted either in-line or within the fuel tank or both. Maximum fuel tank capacity 9.25 litres. A catch-tank must be used. B At all times the following must be original equipment parts as supplied by the manufacturer of the chassis: Chassis frame, rear bumper, stub axles, pedals, steering column. They may not be replaced with bandit, non-standard, equivalents. These parts must always remain as supplied or homologated. B The insertion of an internal chassis strengthening steel tube, maximum length 320mm, to prevent or repair cracking of the main side rail tubes is permitted to a maximum of one per side rail. This internal tube must be positioned at the rear of the kart encompassing at least 40% of the rear axle bearing hanger area. B On the grounds of safety the use of aluminium nuts and bolts is prohibited throughout the whole of the kart including the engine. B In the interests of safety and driver comfort, particularly for junior drivers, it is permitted to use a brake/throttle pedal/mount which has been amended to that originally homologated with the kart subject to the following criteria. The pedals must follow the original basic design but may have different diameter tubing, vary in height and have revised lugs for connections/stops. It must be made by the original manufacturer. Revised mountings must be either welded in place by the manufacturer or bolted on. They must be strong enough for the task but must not provide any other benefit. It is also permitted to use add-on devices which make the pedals easier to operate. Use of devices which clamp/bolt onto the central steering column bottom support may be used as a heel stop but must only be attached in their centre section and must only be used for heel support. B It is not permitted to extend the width of the sidebars by use of an additional sleeve or other extension between the bar and chassis. B It is permitted to repair a chassis by welding providing the fundamental design is not changed and no other material is used except for the weld B3.4 Engine B3.4.1 TKM BT82 Piston Port two stroke engine fitted with a standard Walbro WB19 carburettor stamped TKM, carb spacer block marked TKM, ignition Motoplat or PVL system marked Formula TKM, TKM exhaust system complete with flex and standard TKM Carburettor induction box complete with original filter. The BT82 engine as raced, including induction box and ancillaries, must conform, in all respects with the Homologation Fiche with its Extension and Amendments, as clarified and elaborated on within these regulations and any official TKM technical bulletins. Note new style noise induction box and exhaust system may be used from as an option. B3.4.2 The engine and ancillary components such as carburettor and ignition, must be raced in standard condition as manufactured and/or supplied by Tal-Ko with no other brand or tuner identity added. Filing, grinding, polishing, surface treating or lightening of any component is expressly forbidden. This expressly includes any chemical or other treatments intended to smooth the flow of air/fuel within the carburettor. B3.4.3 The addition of materials to any component is not allowed. Black anodising of the head and barrel must remain, subject to fiche requirements. It is permitted to mark engine measurements and engine number on the barrel/head. External wear and tear such as accident damage causing fin breakage, or throttle spring rubbing, will be permitted. B3.4.4 While it is accepted that a minimal amount of damage is permitted to the exterior of the induction/noise box system including its trumpet, any damage that affects the course of airflow into the engine is prohibited. This particularly applies to the shape of the inlet trumpet at its flared end and along its length. B3.4.5 The use of any sort of tuner name, identification or colouring on the noise box (other than 18

21 TKM) is not permitted. The noise box assembly cannot be modified except for the use of secondary securing methods such as cable ties and tank tape, provided that they are not used to gain any performance advantage other than reliability. No additional holes may be drilled in the assembly for cable ties. Tank tape must not be used to alter the passage of air into or through the air trumpet. Tank tape may be used to effect repairs but such tape must not incorporate any trade name or identification. Old style airboxes are fitted with a black back plate incorporating a TKM logo. Previous back plates were either blue or white without logo. Air trumpets are black plastic replacing the previous alloy type. All are permissible for use. B3.4.6 All parts used in or on this engine must be of original TKM manufacture or source, except where expressly allowed. UNLESS IT STATES THAT YOU CAN DO IT YOU CANNOT!!! B3.4.7 The following minor modifications are permitted: Drilling of a hole in a head or barrel fin to fit a throttle return spring. Modification to, and addition of, a slot in the Carburettor swivel assembly and Carburettor spacer to allow for ease of throttle cable fitment. Drilling holes in component mounting nuts and bolts to allow the fitting of locking devices. Extension to the high jet to ease adjustment while driving is permissible, providing the original jet is still used and the extension does not exceed 50mm in length. Extension to the low jet is not permitted. Up to three self tapping screws may be used to strengthen the fitting of the old style induction box to the back-plate and up to 3 holes drilled expressly for their fitment. No other additional holes are permissible in the noise box assembly other than those provided when the unit was supplied. Drilling of scrutineer s sealing wire holes up to a maximum diameter of 3mm, one per component in the fins of the head, barrel, and two crankcase halves. It is also permitted for authorised scrutineers at a race meeting to mark engines with paint. Where spring location holes in the TKM exhaust and manifold bend flex spring flanges have become worn through, it is permissible to re-drill additional holes further around the flanges solely for spring retention purposes. It is also permitted to repair broken spring holes and or cracked flanges with a local weld/braze repair. TKM manufactured brass main bearing shims may be used to facilitate correct crankshaft end float clearance. As an alternative to the standard black carburettor fuel pump diaphragm, it is permitted to use the beige colour fuel pump diaphragm as supplied in the Walbro WB19 repair kits, part nos. D10-WB and K10-WB. The small butterfly adjustment screw and spring screw which sets tickover on the Carburettor can be fitted either way round. It is beneficial to reverse it when setting up tickover on a clutch type engine. It is permitted to repair broken ignition wires providing original type connectors are used. B3.4.8 It is permitted to paint the TKM manufactured exhaust silencer provided that only black paint is used and that the original TKM logo is still visible. It is expressly prohibited to use any other coating or plating or to use any colour other than black. B3.4.9 Junior TKM (using 100cc TKM BT82 engine) and Junior Extreme (using 115cc TKM BT82 Extreme engine) must use a single TKM manufactured aluminium anodised carb restrictor plate between the carburettor and engine. This is a flat metal plate with a minimum thickness of 3mm and a central parallel round bore of varying sizes and identifying colour according to driver weight through which all the mixture feeding the engine must pass. No blenders of any configuration are allowed. This part must not be modified or polished in any way and must be as made and supplied by Tal-Ko. It must display the genuine TKM logo. Coloured anodising must be intact. 19

22 B Junior weight/restrictor sizes as follows, In each case the weight is total of driver and kart as raced: Junior 128 kilos with Gold anodised 20.5mm restrictor. Junior 136 kilos with Blue anodised 22mm restrictor. Junior 142 kilos with Purple anodised 24mm restrictor. B Junior Extreme engine must use Purple anodised 24mm restrictor. B Ignition timing is limited as detailed. When it is set it must be locked so that it cannot be adjusted by the driver with the kart in motion or by any mechanical and or vacuum/electronic device. B On Motoplat Ignition, the timing must be set to between 2.0mm and 3.0mm Before Top Dead Centre. On the PVL system, ignition timing must be set to between 1.5mm and 2.1mm BTDC. Ignition timing to be measured statically using a dial indicator on the piston crown and the original ignition timing lines. B Engine management systems and additional fuel pumps are prohibited. B Connection between the carburettor and throttle pedal to be of one bowden type cable. No other means of throttle actuation permitted except for hand throttles used as easy-start mechanism. B It is mandatory to use the NGK spark plug cap and HT lead as supplied by Tal-Ko with new engines. The only spark plugs permitted are as listed and must be unmodified with sealing washer in place. The list of spark plugs is as follows: DENSO W27ES-ZU, W31ES-ZU, IW27 and IW 31 NGK B9EG, B10EG, BR9EG, BR10EG, B9EGV, B10EGV, BR9EIX and BR10EIX. B A minimal amount of machining is permitted to the cylinder head subject to stringent conditions, primarily intended to allow rectification of engines that have suffered head damage. This must be carried out in line with the drawings laid out in the fiche. Note that the squish angle face of 12 degrees plus or minus 1 degree must meet and intersect the liner mating face of the cylinder head at that angle, with no intermediary angles or curves throughout their full circumference. Any form of step, recess, groove or similar will render the cylinder head illegal since it will not follow the original shape. B The cylinder head and/or liner mating face(s) must remain flat. If machining or any other operation is carried out on the cylinder head and/or liner mating face(s), the mating faces must always remain flat over the full extent of their original surface. B It is permitted to use helicoil type thread replacements to repair critical engine fixings on the cylinder head, crankcase and cylinder barrel. Any other type of repair or insert is prohibited. Such repairs must not be used to derive any benefit other than rectification of damage. In the case of the spark plug thread, no portion of the helicoil may protrude outside of the normal thread area. The coil must be inserted to the full length of the original thread and only one continuous coil to be used per repaired thread. In all cases the size of the repaired threads must remain as standard. On the carburettor, it is permitted to repair the non-metric threads with M3 or M4 threads providing they do not perform any other function. B When measuring the inlet and exhaust port timing it is clarified that the maximum contact pressure on the feeler gauge should be only that achieved through finger pressure on either one of the crank nuts. The dial gauge and fixture block used for this purpose must be tightened down at 13lb/ft on each of the two nuts. The nuts/studs must have threads in good condition, lubricated, and with nuts which can be easily moved by finger-only pressure at the point of being tightened. B All gaskets used in or on the engine must be of original TKM supply and must be fitted in accordance with the engine fiche. Only one gasket is permitted on any engine part with the exception of the barrel to crankcase mating face where it is permitted to use up to a total of any three of the standard 3 alternative thickness TKM supplied gaskets. Use of gasket sealer/grease is permitted. B It is permitted to fit additional silencing where required by MSA or local club regulations, provided that the original complete TKM equipment is still used in unmodified form. B The only exhaust end can permitted is that provided by Tal-Ko and marked with the TKM logo. 20

23 B When taking measurement of the cylinder head volume, the cylinder head must be fitted to the engine in the manufacturer s normal manner with the standard four brass head nuts (or approved TKM sealing nuts) tightened to 13lb/ft and the two small allen headed bolts tightened to 8lb/ft. The nuts/studs must have threads in good condition, lubricated, and with nuts/threads which can be easily moved by finger-only pressure at the point of being tightened. The engine and other test equipment should be at a cold (ambient) temperature of between 5 C and + 50 C. Any readings taken within this temperature span will be accepted as definitive. The engine must be as raced - e.g. with the same gaskets in position and with no carbon removed from the top of the piston, inside of the combustion chamber, etc. The cylinder head may be removed for inspection by an authorised MSA scrutineer before being replaced for a head volume check. When carrying out such a check use must be made of the authorised and TKM marked measuring plug. Procedure should follow that laid down by Tal-Ko. An A grade burette must be used with oil which meets the specification (available from Tal-Ko). Once it is determined that the oil level has reached the top of the measuring plug hole, the reading should be taken within 30 seconds with no more oil added. B As part of TKM s commitment to noise reduction, it is mandatory to use effective heatproof webbing or similar material wrapped around the exhaust flex to help reduce noise. B The use of purpose designed TKM fin rubbers is mandatory. All new engines are now fitted with noise reducing fin rubbers as supplied by Tal-Ko. These comprise 10 special rubbers all with TKM logo and either marked H or B to indicate whether for head or barrel. Competitors must use a full set of these rubbers, which may be fitted to older engines. The use of more than 10 rubbers is allowed but not advised. Only TKM rubbers permitted. Where fins have become broken on an engine it is permitted to remove excess sections of the rubbers at this point. B The use of one or more TKM manufactured with TKM logo special steel cylinder head retaining nuts with hole for sealing wire is permitted, even if sealing is not required. Use of such nuts may be mandatory at championship meetings as specified in their regulations. B The use of both piston rings is mandatory. The rings must at all times remain predominately free to operate in the manner in which they were designed and supplied. It is the responsibility of the driver to ensure that the rings are not coked in place with carbon or prevented from their normal spring effect by other methods. The rings should be appropriate to the piston size used and have a maximum ring gap of 0.5mm when measured with the ring placed squarely 5-10mm down from the top of the cylinder bore. This rule does not apply on Extreme engines with only one piston ring. B Where possible it is recommended that the use of officially sanctioned and part numbered Tal-Ko gauges is used in checking engine measurements. In the case of any discrepancy results using TKM approved gauges will be taken as definitive. B It is permitted to use a TKM manufactured with TKM logo flex ring to help increase the life of the exhaust flex. B Permitted Re-bore (Extreme Specification Engines Only). It is permitted to re-bore the barrel in order to take new TKM Extreme oversize pistons mm. This modification may be carried out to any age engine. It is also permissible to carry out minor machining to the cylinder head to match as detailed in the latest fiche additions. The pistons in these Extreme engines will have only one piston ring. In all other respects normal Formula TKM rules apply. B3.5 Transmission B3.5.1 The drive must be direct, i.e. the crankshaft and rear axle are connected only by a single length of chain. No belt drive, reduction gears, etc., permitted. Engine sprocket to be 9, 10, or 11 tooth. B3.5.2 Karts may be fitted with the optional Formula TKM Horstman dry clutch. If fitted this must carry the Formula TKM markings and be used in unmodified form as manufactured. This clutch is mandatory for Junior Extreme. B3.5.3 Engines fitted with a clutch must use the genuine TKM clutch safety cover in unmodified form. An effective and working ignition on/off switch must be fitted to the kart and clearly marked in the off position. 21

24 B3.6 Brakes B3.6.1 Brakes must be hydraulic disc brake operating on the rear wheels only - no ABS or similar systems. On-board adjustment by driver not permitted. B3.6.2 The brake disc must be made from cast iron or steel. Type free may be ventilated. The brake to consist of one calliper, with two pads and maximum of two pistons per pad. Twin master cylinders permitted. Disc carrier free. Any brake system may be used. Pads free.. B3.6.3 Rule no longer applies. B3.6.4 For the purposes of safety it is mandatory for all karts to make use of a dual connection between the brake pedal and master cylinder. The prime connection may be either solid or cable operated, with a secondary safety cable minimum 1.8mm nominal diameter set slightly looser to act as a back up in the case of failure. 2001/2004/2007 karts will come with such fitment as standard to which no modifications to the brake system may be made. On older karts minimal safe alteration of the brake system to accommodate these dual connections will be permitted. B3.7 Wheels and Tyres B3.7.1 The only tyres permitted are Maxxis green label with the words Formula TKM moulded in their sidewalls. Dry slick tyres will have green labels, wet tyres will have red labels. They must not be modified in any way including hand or machine cutting. Tyre sizes/types as follows: Dry (SLC) Front 10x4.50-5, Rear 11x Wet Formula TKM Front 10x4.50-5, Rear 11x B3.7.2 Heating of tyres by any artificial method, or their treatment by any chemical substance, is prohibited. Tyre pressures are free. B3.7.3 Wheels are free but must not be made of plastic type material. Wheels must be of one moulding/casting. The use of wheels which have been cut and joined to increase or reduce width is expressly prohibited. Front wheels may have a separate detachable hub. It is permitted to use wheel balance weights affixed to the wheels. B3.7.4 Maximum wheel width should be a nominal 122mm front and 210mm rear as measured across the inside edge of the beads. Maximum permitted width across the outer edges of the rims to be 131mm at the front and 217mm at the rear. B3.8 General B3.8.1 Retail Price The maximum retail price for the chassis is 1450 (plus VAT) assembled. To include wheels, CIK bodywork, engine mount, exhaust mount, fully enclosed chain guard and be ready to use except for engine, noisebox, tyres, seat, chain and axle sprocket. B3.8.2 Weight (on completion of any part of the event) Junior TKM 128: min 128kg with driver. Maximum kart weight without driver is 94kg. Junior TKM 136: min 136kg with driver. Maximum kart weight without driver is 89kg. Junior TKM 142: min 142kg with driver. Maximum kart weight without driver is 83kg. Junior Extreme: min 138kg with driver. Maximum kart weight is 94kg. Senior TKM Extreme min 148kg with driver Senior TKM Extreme Heavy min 163kg with driver. The driver must in full racing equipment weigh a minimum of 80kg. B3.8.3 Plates K 196 applies Senior TKM Extreme red with white numbers. Junior TKM blue with white numbers. Junior Extreme white with black numbers 22

25 B3.8.4 Ages Junior TKM As per K 116 Junior Extreme From 13th birthday to 31st December of the year in which 17th birthday falls. Senior TKM Extreme The Class is open to any driver aged 16 or over. A Junior may transfer to this senior class at any time during the year that he/she achieves the sixteenth birthday, subject to K 116 of the Competitors Yearbook. Having moved into the senior class he/she may not revert to a junior class. B3.8.5 Additional Notes While taking part in racing or official practice a revolution counter may be fitted. In addition it is permitted that this rev counter or another device may also record lap times and length of engine running time. If such equipment is fitted with temperature sensing capability this connection must not be used. All other equipment used for measuring data, data-logging or for transmitting a signal to another receiver whilst the kart is in motion is prohibited. All sensors and related wiring and brackets must be removed from the kart for racing and official practice if this equipment does not comply. A rev counter with memory for revs, time running and lap times is not regarded as data logging equipment. The only exception to this rule applies to the fitting of officially sanctioned cameras and other recording devices and to transponders and other equipment required as part of the organisers requirements for that race meeting. The use of Easystart wheels is permitted. Only the TKM BT82 name may be used under the heading engine in event programmes. No other names permitted. The organisers reserve the right to take away an engine complete with carburettor, noise box, exhaust system, etc. sealed by an MSA scrutineer for the purposes of power testing on the manufacturer s approved dynamometer. The competitor and an MSA scrutineer to be present for such testing and any subsequent stripdown, which is carried out at the risk of the competitor. It is permitted to add weight to the kart in order to meet minimum weight requirements provided that MSA regulations are adhered to. Weights must be attached within the periphery of the main kart frame and must not be attached to the side pods and/or front nose cone. It is permitted to add weights to the seat but strongly recommended not to add more than a total of 2kg weight to the floor tray. No one single piece of ballast must be more than 5kg. All weights to be fixed using a minimum of two mechanical fixings, i.e. bolts with washers. When completing scrutineering cards for events it is required to enter both the chassis number AND the Formula TKM sequential plate number. In the event of any dispute the regulations and fiche with updates as published within the official Formula TKM Regulations and Technical Guide 2008 together with any appropriate Technical Bulletins will be taken as the definitive documents. It is the responsibility of each and every competitor to obtain these regulations and fully implement them. Ignorance of any rule will not be a defence. All rules effective January 1, A copy of the Formula TKM Regulations and Technical Guide 2008 including the engine homologation fiche is available from Tal-Ko Racing at Copies of the individual chassis fiche are also available from the MSA. B3.9 ABkC Rules (which must be read in conjunction with the above). B3.9.1 Chassis In the case of any dispute relating to chassis legality the onus is on the competitor. 23

26 TKM BT82 CYLINDER HEAD COMBUSTION CHAMBER SQUISH ANGLE FACE No. 1 LEGAL LINER MATING FACE No. 2 ILLEGAL No. 3 ILLEGAL Formula TKM Technical Bulletin 9803, July 17, page 3 24

27 B3.9.2 Eligibility Judge of Fact The ABkC championships judge of fact on the legality of a Formula TKM engine will be Mr P. A. Klaassen, or other persons who from time to time may be appointed in writing by the ABkC. B3.9.3 Driver Restrictions There are no restrictions on drivers racing in this formula but clubs are permitted to introduce restrictions in their individual supplementary regulations, for example: Drivers who are competing in the current Super One Series in KF1 or KF2 are not permitted to race in this class in National A events. B3.9.4 It is intended that the three Junior weight/restrictor categories should normally race together with blue plates for one set of awards. However where numbers permit it is open to clubs to run any band or bands separately. B4.1 Class Rotax Mini Max Affiliation Commercial: J.A.G. Engineering and ABkC B4.2 Introduction: A restricted version of the FR 125 Junior Max to give the younger driver the opportunity to race Rotax Max. B4.3 Chassis: Any chassis conforming to MSA Direct Drive Regulations. B4.4 Engine: The only engine permitted in this class is the Rotax FR125 JUNIOR MAX with restrictors. The Junior Max adheres to the Senior Rotax FR l25 Max fiche plus extensions for the Junior including the cylinder. The cylinder is to be of non-power Valve type. The engine is a single cylinder, liquid cooled, reed valve two stroke. All engines must be sealed between cylinder, crankcases, cylinder head and the reed valve block with an official seal to prevent modification. All engines are issued with an official identity card. It is the competitor s responsibility to ensure the numbers inscribed on the engine and seal correspond with those on the identity card at all times. Only authorised dealers will be issued with seals for use during maintenance of the engines. The identity card must be filled in and signed by an authorised dealer. The engine must be presented at scrutineering with the official class seal intact and the identity card lodged with the scrutineer. The card must be collected by the competitor at the end of the race meeting. (At club race meetings it is not compulsory for competitor s to lodge the identity card with the scrutineers. The identity card must be available for inspection by the scrutineers at any time during the race meeting). Should a seal become damaged, loose or lost during racing it must be reported to the meeting s scrutineer before leaving parc ferme. To allow the competitor to continue racing the scrutineer may at his discretion re-seal the engine with an official MSA seal. The new seal No. Must be entered in the engine s identity card and signed by the scrutineer. The engine must be taken to an official dealer with MSA seal intact to be re-sealed with an official class seal before competing at the next race meeting. B4.4.1 Modifications: The engine and its ancillaries may not be modified in any way unless otherwise indicated by these regulations or the official MSA fiche. UNLESS IT STATES THAT YOU CAN DO IT YOU CANNOT!!! The engine must be raced in standard form as manufactured and supplied by Rotax unless otherwise stated. Filing, grinding, polishing, surface treating, machining or lightening of any component is forbidden unless otherwise stated. The addition of material to any component is not allowed unless otherwise stated. All parts used in or on this engine must be of original manufacture or source as supplied by Rotax for the FR125 Max unless otherwise stated. The engine is to be used with air box, carburettor, fuel pump, radiator, wiring loom, ignition system and exhaust system as supplied by Rotax unless otherwise stated. Position and method of mounting the battery, wiring loom, exhaust system are free providing they are securely fixed to the satisfaction of the meeting s scrutineers and in accordance with MSA Regulations. Filing of crankcase to allow easy fitting of water connection is allowed. Fitting of helicoils and inserts to repair damaged threads is allowed, except for the spark plug thread in the cylinder head insert, providing such repairs are not used to derive any benefit other than rectification of damage. 25

28 Minor damage to the cylinder or crankcase may be repaired by welding but only to restore the component to the original specification. The use of thermal barrier coatings/ceramic coatings on or in the engine or exhaust system is not allowed. Replacement connectors to repair wiring loom are permitted. Repairs to starter motor are also allowed. B Restrictors Exhaust restrictor must be in place at all times. Restrictor must be as supplied by J.A.G. and comply with the official fiche, no modifications allowed. Exhaust flange restrictor, 20.3 mm maximum round bore, all exhaust gases must pass through this restrictor. B4.4.2 Carburettor: Dell orto VHSB 34 QD or QS. All parts of the carburettor including the body are to be unmodified and run as supplied by Rotax. The carburettor must have VHSB 34 (cast in body) QD or QS (stamped on body). All parts must comply with the official fiche. The only adjustments allowed are the main jet, external air screw, throttle stop adjustment screw, and needle position on the five grooves provided. Needle jet atomiser FN 266. Choke jet 60. Idle jet 30, idle jet emulsion tube 30. Needle K27 or K98 (Rotax Part No ). Float needle valve 150. Slide 40. Floats 5.2gr. Atomiser Type 2. Alternative idle jet 60, idle jet emulsion tube 60, and 3.6gr floats may be used. Idle jets, idle jet emulsion tubes and floats may not be mixed and only used in one of the two following combinations:- Combination 1: Idle jet 30, idle jet emulsion tube 30, floats 5.2gr; Combination 2: idle jet 60, idle jet emulsion tube 60, floats 3.6gr. The venturi must have 34 cast and 12.5 or 8.5 stamped on the top of the venturi. Throttle cable and adjusters are free. It is permitted to use a single length of vent tube looped across the two air vents of the carburettor with a hole or slot cut in the side of the vent tube at the top of the loop. B4.4.3 Fuel Pump: Only Mikuni Fuel Pump DF Part No may be used. The fuel pump must be fitted to the bottom or side of the standard air box bracket. Only a single length of pulse tube from crankcase connector to fuel pump may be used. Only a single length of fuel line from fuel pump to carburettor may be used. It is permitted to use an in-line fuel filter as supplied by Rotax between the fuel tank and fuel pump. An Internal fuel tank filter is also permitted. No restrictors, fuel returns or additional reservoirs are permitted. B4.4.4 Intake Silencer: Type 1 or Type 2 may be used. Type 1 must be used as supplied by Rotax for the FR125 Max engine unmodified, except for the bottom half of the air box, where the lug support ribs on the longitudinal side may be removed to allow the fitting of the air box support bracket. It is also permitted for the airbox lower half (type 1 only) to have a single 8mm maximum diameter hole positioned in a central location using the area of the injection mould marks as a guide. Type 2 must be used unmodified as supplied by Rotax for the FR125 Max engine. Air box type 1 or type 2 must be used with its filter and all component parts in place. The two halves of the airbox must be securely screwed together using 4 M6 screws. All 4 screws must be sufficiently tightened to securely clamp the two halves of the airbox together. a) In dry race conditions the air box MUST be positioned with inlet trumpets to the bottom of the box. The air box must be securely fitted in a manner to prevent rotation. b) In wet conditions i.e. only when declared a wet meeting by the Clerk of the Course the air box may be fitted in any position. c) If the meeting is declared open: Kart on wet tyres position free; Kart on Dry tyres fix as dry. d) It is permitted for the airbox lower half to have a single 8mm maximum diameter hole positioned in a central location using the area of the injection mould marks as a guide. B4.4.5 Exhaust System: Only TYPE B Part No exhaust may be used. The exhaust system and silencer may not be modified in any way except for the pop rivets securing the silencer end plate may be replaced with screws. The use of a jubilee clip to secure the end plate pop rivets or screws is allowed. It is permitted to paint the exhaust system with black paint. The use of any other coating or plating is not allowed. It is permitted to make minor repairs by welding or braising to the exhaust system providing there are no alterations to the original dimensions. 26

29

30 B4.4.6 Radiator: The radiator must be fitted to the right hand side of the engine using standard hoses and connections as supplied by Rotax. Engines using the thermostat cooling system must use the system in its entirety which comprises of thermostat head cover, radiator, radiator cap, radiator hoses, steel crankcase water hose connecting tube and radiator bracket. It is permitted to use the thermostat cooling system with or without the thermostat in place. The use of alternative hose clips and screw fixings are permitted. Blanking of the radiator is free providing it does not necessitate the modification of the original components other than simple attachment. Minor repairs to the radiator are allowed. B4.4.7 Ignition unit: DENSO digital battery ignition, variable timing with no adjustment. Ignition coil must have and DENSO moulded on the case. The ignition coil must have three pin connection. The ignition coil must be mounted by means of two original rubber mounting blocks or equivalent to the gearbox cover. In the case of chassis component interference with the original mounting position it is permitted to relocate the ignition coil by the use of an extension bracket. The extension bracket must be attached to the original gearbox cover mounting holes. The ignition coil must be mounted by means of two original rubber mounting blocks or equivalent. Spark plug cap must be marked with NGK TB05EMA. Ignition switch can be either On-Off type, part number , or Automatic fuse type, part number Any make of battery is permitted provided it is of the same specification as supplied by Rotax for the FR125MAX 12v/6.5Ah, 12V/7.2Ah or 12v/9Ah. FIAMM-GS type FG20651, FG20722, FGHL20722, FGH20902,YUASA YT7B-BS and ROTAX BATTERY FX7-12B recommended. B4.4.8 Spark plug: The only spark plugs permitted are as listed and must be unmodified with sealing washer in place. The list of spark plugs is as follows: Denso IW24, IW27, IW29, IW31. NGK BR8 EG, BR9 EG, BR10 EG, B8 EG, B9 EG, B10 EG, B8 EGV, B9 EGV, B10 EGV, BR8 EIX, BR9 EIX, BR10 EIX. Other makes/types may be added to this list by J.A.G.; details will be published in official bulletin. B4.5 Transmission: Direct from the engine to the rear axle via a single length of chain. The clutch supplied with the engine must be used with its standard components. The clutch must engage at a maximum engine speed of 3000 rpm. [See K 214] B4.6 Brakes: Hydraulic disc brake operating on rear wheels only. B4.7 Tyres: Dry: VEGA SL8 Marked J.A.G. 10 x front, 11 x rear Wet: VEGA W2 Marked J.A.G. 10 x front, 11 x B rear B4.8 General An ignition kill switch must be fitted and must be identified with a blue triangle to assist marshals in the event of an incident. B4.8.1 Retail price: Not applicable B4.8.2 Non-Technical items: The use of alternative fasteners, washers, hose clips, fuel and pulse line is allowed unless otherwise specified. The use of additional and alternative earth straps is allowed. The use of additional air box support brackets, radiator support brackets, coil-mounting brackets, chain and clutch guards is allowed providing the fitting of these does not necessitate modification of the original components. B4.8.3 Weight: Minimum of 135 kg including driver at all times. Maximum kart weight without driver is 108kg B4.8.4 Number Plates: Yellow with black numbers. K 196 applies. B4.8.5 Age: As per K 116 B4.9 Data logging Data logging is permitted, data logging systems with or without memory may be used. It is only permitted to take readings of engine rpm, engine water temperature, speed of 1 wheel, an X/Y accelerometer, lap times and split lap times. The engine water temperature sensor may only be fitted in the position provided in the cylinder head cover for this attachment. The rpm, may only be recorded 28

31 via a sensor on the HT lead to sense spark plug pulses. The HT lead must remain a single length from ignition coil to spark plug cap. The fitting of these sensors is only permitted providing there is no modification to the original engine components. B5.0 Group Junior B5.1 Class Formula Junior Blue Affiliation NKRA B5.2 Introduction. To Provide a box stock economy / Club Class using 100cc liquid cooled TaG racing engines allowing youngsters to graduate from Cadets into Junior racing. Speed and tyres are restricted to cater for the younger driver. Weight variations are incorporated to facilitate as closely as possible light and heavy youngsters in equal competition. The class will also allow for a direct transition into the Senior section with minimum mechanical equipment changes as the Juniors come of age. The control of the class regulations rests with the NKRA. B5.3 Chassis. Must conform to MSA direct-drive regulations. Maximum axle size 50mm diameter. B5.4 Engine. IAME Lynx Tabor Tag, 2 stroke, liquid cooled 100cc engine. This engine must conform to the manufacturers / UK importers specifications as lodged and agreed with the MSA. Its function must remain in the condition as intended and designed. No other modifications or alterations are permitted except where expressly allowed. The engine must be raced in standard form as manufactured by IAME. Filing, grinding, polishing, surface treating, machining or lightening of any component is forbidden unless otherwise stated. The addition of material to any component is not allowed unless otherwise stated. All parts used in or on this engine must be of original manufacture or source except where expressly allowed. The following parts must be marked and be sequential numbered by the Importer (Tabor) power box 5A, cylinder, crank case, clutch, clutch drum, ignition, piston. These sequentially marked numbers must be recorded with the importers (TABOR) prior to racing. Where replacement is required during race day, then the scrutineer must be advised in print prior to race use. The engine is to be used with airbox, carburettor, water pump, radiator, wiring loom, ignition system and exhaust system as supplied by the manufacturer. The ignition/alternator unit must be in operation at all times and the timing must be within the preset parameters. The battery must be fitted within the metal enclosure as supplied and mounted on the left hand chassis rail using original specification brackets/clamps. Starting system must be on-board system as supplied; no additional starting equipment can be fitted or used Engine eligibility will be determined by the NKRA Eligibility Scrutineer with support and advice from the Importer (Tabor) Only the following plugs may be used. Bosch WCS; Champion N, NG, NR; Densso WEN, WEPT, WES-GU, Motacraft AG, AGX. NGK; BEG BEV, BEGV, BEGP BREG. Heat range is free. The radiator must be fitted to the left hand side of the kart using standard hoses and connections. Fitting of helicoils and inserts to repair damaged threads is allowed, providing such repairs are not used to derive any benefit other than rectification of damage. The use of thermal barrier coatings/ceramic coatings on or in the engine or exhaust system is not allowed. Blanking of the radiator is free providing it does not necessitate modification of the original components other than by simple attachment. Minor repairs to the radiator are allowed. UNLESS IT STATES THAT YOU CAN DO IT YOU CANNOT!!! B5.4.1 Carburettor. Tillotson 360 unmodified. No added/extra components of any description that could affect airflow between the mouth of the carburettor and the reed block may be used. The inlet spring must be original, unmodified and of the same length. Gasket set DG 1HL, Inlet set RK117HL. An official restrictor from the NKRA list must be used, see below. B5.5 Tyres. Slick: Dry: LeCont LH TAB 10x4,50-5; 11x710-5 Wet: LeCont W TAB 10x4.20-5; 11x

32 B5.6 Weight. NKRA specification, colour coded, restrictor sizes will apply for the following minimum weights. 123kg (driver min. 27kg) Silver TAB kg (driver min. 43kg) Purple TAB kg (driver min. 53kg) Gold TAB kg (driver min. 63kg) Red TAB kg (driver min. 73kg) Grey TAB 21 Driver minimum weights are race weight with full racewear and helmet. B5.7 Number plates. White with black numbers. B5.8 Age. As per K 116. B5.9 Retail Price. Maximum retail price for engine excluding carburettor and exhaust is 870 plus VAT. B5.10 General Equipment. While taking part in racing or official practice only a revolution counter, lap timer, or temperature gauge may be fitted. All equipment designed for measuring data that can be transmitted either mechanically or electronically to another receiver either during or after motion is prohibited. This applies whether the capacity to do so has been permanently removed (by anyone other than the manufacturer or official importer), or not. All sensors and related wiring and brackets relating to such equipment must be removed from the kart for racing and official practice. The exception to this is where officially sanctioned cameras and/or transponders and/or dummy camera units are required by the organisers of the race meeting. B Engines. The NKRA reserves the right to amend restrictor sizes should performance require adjustment on safety grounds and to preserve comparable kart performance. B6.0 Group Senior/Junior B6.1 Class Formula TKM 4-stroke Affiliation Commercial, Tal-Ko/ABkC B6.2 Introduction. 4-stroke class providing close and cost effective racing with sealed high performance engines. B6.3 Chassis. Any make of chassis conforming to MSA regulations made since Must have been homologated/registered by either the MSA or CIK or a registered Formula TKM 4-stroke design. ProKarts designed to use two Honda engines may be used providing they meet with other class criteria. They must remain capable of taking two Honda engines with the seat in nominally central position. B6.3.1 Bodywork. Use of CIK homologated crash tested sidepods and front fairing is mandatory and must conform to MSA technical regulations. Sidepods may incorporate suitable holes for starter shaft and radiator catch tank fitment in line with MSA technical rules. Rear bodywork may be used if MSA technical regulations permit. B6.3.2 Bumpers. To MSA specification. Rear bumpers may additionally be fitted with a vertical protection loop for the carburettor/airbox in which case the loop must be welded/brazed to the bumper and not exceed a height of 35cm from the ground. B6.3.3 Materials. The following parts are specifically prohibited: Components made from Kevlar, Carbon Fibre, Titanium or other similar exotic materials, other than for the seat or floor tray material which is optional. The use of plastic or similar materials for components such as wheels, wheel hubs/bosses, sprocket and brake disc carriers is expressly forbidden. Magnesium and Electron is permitted. On grounds of safety the use of aluminium nuts and bolts is prohibited throughout the whole of the kart including the engine. The only exception is the engine oil drain plug bolt which is made from aluminium. 30

33 B6.3.4 Other. Front and rear ride heights may be adjustable. Torsion bars and adjustments permitted. Drivers may make use of tank tape, cable ties, thin wire or throttle cable type bowden cable in ensuring that items such as exhaust, bumpers, electrical wiring, chain guard, etc do not come off during the course of racing. The item used must only be there for secondary security and reliability purposes. B6.3.5 Rear Axle. The rear axle must be of parallel magnetic steel, 50mm maximum nominal diameter. The axle can be either solid or hollow. It must be supported in two or three bearings. Quick release and/or cassette type axle bearing assemblies may be used. B6.3.6 Steering. Ackerman steering with double mounts on the centre steering column bush for track rods permitted. Nylon type track rod links of suitable strength may be used. Adjustable front castor and camber permitted. Multi-point stub axle track-rod arm bolt fixings permitted. Rack operated steering not permitted. All karts must have the steering column mounted in such a way that even if the bottom retaining bolt/nut is removed it cannot pull free from its lower bearing. B6.3.7 Seat. Seat type is free including material. Use of commercially available and manufactured variable rigidity adjustment systems for seats is permitted subject to the following criteria. The device must be mounted to the seat itself and must not be attached to or have contact with the seat mounting points or chassis. It is not permitted to use home constructed non commercially available torsional adjustments. Additional bolt on seat stays/mountings are permitted, position free. B6.3.8 Fuel Tank. The fuel tank must be floor tray mounted beneath the steering column, forward of the driver, type free. A fuel filter is allowed in the fuel tank and/or an in-line filter. Maximum fuel tank capacity 9.25 litres. A fuel overflow catch tank must be fitted. B6.4 Engine. TKM K4S 4-stroke. 200cc. Engine must be fitted with the official TKM numbered seal as fitted by Tal-Ko or any other nominated fitter. The engine must be raced in as supplied and manufactured form with no modifications or changes to the original sealed specification other than those detailed in these regulations. It is stressed that this is a class with no engine modifications permitted. Any attempt to modify the engine in any way not specifically authorised here renders it outside these regulations. Only Tal-Ko or nominated dealers are authorised to strip, inspect and seal engines. Every engine must carry an official anodised TKM numbered seal attached to the cylinder head and cam cover nuts. If this seal is broken the engine cannot be raced and must be returned to Tal-Ko for checking and resealing. The only persons allowed to strip and validate an engine for the purposes of checking its compliance with regulations is Tal-Ko in conjunction with an eligibility scrutineer. In such cases Tal- Ko s signed ruling will be final. B6.4.1 Carburettor. Dellorto PHBH28 (BS) TKM logo marked. No modifications permitted to any component including any filing, grinding, polishing, etc. This includes the bolt on carb flange for the induction box. Note all carbs must now be fitted with TKM looped overflow system. Carb system mandatory settings (Junior and Senior): Main jet any available between and including Pilot jet Atomiser 268T. Float assembly Needle valve 150. Slide 40. Choke jet 60. Needle X6 with circlip position free. All jets must be Dellorto unmodified. B6.4.2 Fuel system. Mikuni pulse pump DF D. As supplied, no modifications. Recommended mounting on TKM provided fitting plate fixed to rear of seat. Return fuel pipe must include the return jet 70. B6.4.3 Restrictors Junior Class. Must include TKM manufactured and logo marked gold anodised carb inlet restrictor in unmodified form with a 19mm maximum diameter round bore inlet size. No polishing or changes permitted. Gold anodising must always be in tact. B6.4.4 Noise Box. R&R K4S type TKM logo marked as supplied by Tal-Ko with no modifications. Both induction filters must be used. Cable ties can be used to secondary secure the filters. Must be mounted on a support bracket. Both induction tubes to have standard 29mm nominal inside diameter. B6.4.5 Breather. The engine oil breather system must be used as supplied with no modifications and mounted on the TKM provided fitting plate to the rear of the seat. The use of a cable tie or other secure means is permitted to attach the plastic oil retention bottle. 31

34 B6.4.6 Ignition. PVL Digital System complete with red coil with standard programmed K4S ignition curve and rev limiter. Must be as supplied and stamped and marked with the official TKM logo markings. Stator marked with Ident-Nr Rotor must include TKM logo. It is mandatory to use the PVL black spark plug cap with 5k resistor and HT lead as supplied with new engines. Maximum permitted ignition timing 7.45mm BTDC. No modifications permitted to complete ignition system throughout including any re-mapping. It is permitted to repair broken wires providing the original type terminals are used. An effective and working ignition on/off switch must be fitted to the kart and clearly marked in the off position; position free. B6.4.7 Cooling. Water cooled system. Radiator, water pump, hoses, brackets etc must remain as supplied and unmodified. Use of either straight or offset radiator position permitted using optional TKM brackets and pipes. It is permitted to wrap the cooling hoses with heat protective tape or similar and to use tank tape or similar or an adjustable blind to mask part of the radiator in order to control operating temperature. Anti-freeze or inhibitor mixed with water should be used in cooling system. Water pump with aluminium impeller must be used unmodified as supplied. Radiator must be as supplied by Tal-Ko mounted in standard position with TKM logo stamped supplied mounting brackets. Additional mountings may be attached to radiator and associated components to secure catch tank pipes, blinds, etc. Standard radiators as supplied from Tal-Ko may have the top mounting brackets either welded or riveted in place. This is due to a change in manufacturing method. Both are acceptable. It is permitted to carry out external repairs including welding/brazing to the radiator and its brackets to repair damage. It is not permitted to replace the radiator core. The use of the larger Enduro type Tal-Ko supplied radiator with its associated TKM brackets and pipes is also permitted. This radiator and its brackets must have TKM logo. The radiator caps are interchangeable. Note that the temperature sensor must be fitted in the location hole provided within the engine and must not be fitted within any hose or other section of the cooling system. B6.4.8 Exhaust. Only the compete TKM manufactured and supplied exhaust system permitted with no modifications. It is permitted to paint the TKM manufactured exhaust silencer provided that only black paint is used and that the original TKM logo is still visible. It is expressly prohibited to use any other coating or plating or to use any colour other than black. Note two types of exhaust manifold and exhaust available to suit individual fitments. TKM logo on exhaust body and chrome end must be present. The only exhaust end can permitted is that provided by Tal-Ko and marked with the TKM logo. When using the Enduro style radiator it is permitted to use heat-proof webbing wrapped around the manifold anywhere from the point where it exits the engine through to the joint with the silencer unit. It is also permissible to use a thermostat in the coolant pipes. B6.4.9 Fuel. Unleaded to MSA specification. Super unleaded may be used, LRP must not. B Spark plug. Only permitted plugs :- Denso U27ES-NZU, Denso U31ES-NZU, U34ES- NZU, IU27, IU31, IU01-34 and NGK CR8EIX, CR9EIX and CR10EIX. Spark plugs must be in unmodified form and must be used with original sealing washer. B Lubrication. Oil circulation pump, no modifications permitted. B Starter. By remote electric starter any make (Coleman heavy duty recommended), or by TKM on-board system as supplied. B6.5 Transmission. The drive must be clutch direct, i.e. the clutch sprocket and rear axle sprocket are connected only by a single length of chain. No belt drive, reduction gears, etc, permitted. The only clutch engine sprockets permitted are 12 or 13 tooth, TKM manufactured and marked with TKM logo. Engine must be fitted with the mandatory Formula TKM 4-stroke dry clutch. This must carry the Formula TKM markings and be used in unmodified form as manufactured and supplied. The TKM supplied and logo marked clutch protection guard must also be used. B6.6 Brakes. Brakes must be hydraulic operating on the rear wheels only - no ABS or similar pulsing systems or on-board adjustment operated by the driver while in motion. The brake disc must be made from cast iron or steel but is otherwise free. For the purposes of safety it is mandatory for all karts to make use of a dual connection between the brake pedal and master cylinder. The prime connection may be either solid or cable operated, with a secondary safety cable set slightly looser to act as a back up in the case of failure. Many new karts will come with such a fitment as standard to 32

35 which no modifications to the homologated brake system may be made. On older karts minimal safe alteration of the brake system to accommodate these dual connections will be permitted. B6.7 Wheels and Tyres Juniors The only dry weather slick tyres permitted are Maxxis green label with the words Formula TKM moulded in their sidewalls. They must not be modified in any way including hand or machine cutting. Tyre sizes/types as follows: Dry: Front: 10x (SLC) Rear: 11x (SLC) Wet: Front: 10x Formula TKM Rear: 11x Formula TKM Seniors As above except that for dry weather Maxxis red label slick tyres must be used with Maxxis TKM marked on the sidewalls in red. Heating of tyres by any artificial method, or their treatment by any chemical substance, is prohibited. Tyre pressures are free. Wheels are free but must not be made of plastic type material. Wheels must be of one moulding/casting. The use of wheels which have been cut and joined to increase or reduce width is expressly prohibited. It is permitted to use wheel balance weights affixed to the wheels. Maximum wheel width should be a nominal 122mm front and 210mm rear as measured across the inside edge of the beads. Maximum permitted width across the outer edges of the rims to be 131mm at the front and 217mm at the rear. B6.8 Retail Price. Engine 1449 plus VAT. Chassis open price. B6.9 Weight. On completion of any part of the event Junior min 140kg with driver, Maximum kart weight without driver is 105kg Senior min 162kg with driver Senior Heavy min 175kg with driver. B6.10 Plates/Numbers Junior TKM blue with yellow numbers, Senior TKM red with yellow numbers, Senior Heavy red with yellow numbers and yellow flash. K 196 applies to all. B6.11 Ages Junior As per K 116. Senior The Class is open to any driver aged 16 or over. A Junior may transfer to this senior class at any time during the year that he/she achieves the sixteenth birthday, subject to K 116 of the Competitors Yearbook. Having moved into the senior class he/she may not revert to a junior class. B6.12 General. Only the TKM K4S name may be used under the heading engine in event programmes. No other names permitted. B Data Logging. While taking part in racing or official practice a revolution counter, data logging, timer and temperature sensor equipment may be used. A transmitter may be used which sends/receives one short burst of data from a kart to a land-based receiver once each lap. All other equipment used for measuring data or for transmitting a signal to another receiver is prohibited. The only exception to this rule applies to the fitting of officially sanctioned cameras and other recording devices and to transponders and other equipment required as part of the organisers requirements for that race meeting. B Ballast. It is permitted to add weight to the kart in order to meet minimum weight requirements provided that MSA regulations are adhered to. Weights must only be attached within the periphery of the main kart frame and must not be attached to the sidepods and/or front nosecone. It is permitted to add weights to the seat but strongly recommended not to add more than a total of 2kg weight to the floor tray. No one single piece of ballast must be more than 5kg. All weights to be fixed using a minimum of two mechanical fixings ie bolts. B Warm Up. Organisers should allow a minimum of 5 minutes for the engines to warm up before being used for racing or practice. When the engine is running a driver must be in the seat at all times. 33

36 B Compliance. The organisers reserve the right to take away an engine complete with carburettor, noise box, exhaust system, clutch, etc sealed by an MSA scrutineer for the purposes of power testing on the manufacturer's approved dynamometer. The competitor and an MSA scrutineer to be invited for such testing and any subsequent stripdown, which is carried out at the risk of the competitor. In the event of any dispute the regulations and fiche as published within the official Formula TKM 4-stroke Regulations Guide 2006 together with any appropriate Technical Bulletins will be taken as the definitive documents. It is the responsibility of each and every competitor to obtain these regulations and fully implement them. Ignorance of any rule will not be a defence. B Sealing. Only Tal-Ko or nominated dealers are authorised to strip, inspect and seal engines. Every engine must carry an official anodised TKM numbered seal attached to the cylinder head and cam cover nuts. If this seal is broken the engine cannot be raced and must be returned to Tal-Ko for checking and re-sealing. C1.0 Group Senior (Direct Drive) C1.1 Class KF1 Affiliation CIK/MSA C1.2 Introduction. This Class is running as part of the Super One Series Championship, it is the MSA British Championship for senior direct drive. The class mimics the CIK European class in all respects except for rear bumper, weight and tyres, where a single tyre is selected from the CIK list for use in the class. The top direct drive class in British kart racing KF1 offers the highest level of power and handling but as such this class is the most expensive class in which to take part. All CIK references refer to the current CIK Yearbook unless otherwise specified. This class has superseded Formula A. C1.3 Chassis. C1.3.1 Must comply with MSA Safety and Technical Regulations. C1.3.2 A chassis from manufacturers who have a chassis currently homologated with the CIK. C1.3.3 Bodywork. As per CIK technical regulations and currently CIK homologated. When wet tyres are fitted only CIK regulations apply. C1.3.7 Bumpers. As per CIK technical regulations and currently CIK homologated. CIK homologated rear protection system or MSA specification rear bumper is permitted in this class. C1.4 Engine. C1.4.1 Single cylinder 125cc engine CIK homologated for use in KF1 as per Article 21, base homologation from KF4 as per CIK Article 18. C1.4.2 Tuning limitations. As per CIK Article 18 and 21 C1.4.3 Carburettor. CIK Homologated butterfly carburettor with a maximum venturi internal diameter of 30mm, comprising 2 jet adjustment screws. C1.4.4 All systems of injection and/or spraying of products other than permitted fuel are forbidden. C1.4.6 Ignition. CIK Homologated ignition system with a specific limiter at 16,000 rpm. Any electronic system allowing an auto-control of the parameters of function of engine while the kart is in motion is forbidden An engine cut out switch is mandatory the switch must be located in such a way that it is possible for the driver normally seated in his driving position to trigger it. A sealed (maintenance free) battery must be fitted. C1.4.7 Exhaust. Exhaust design is free as per CIK article 21. Additional silencers are permitted. MSA Yearbook noise levels apply. C1.4.8 Intake. Reed box free. 34

37 C1.4.9 Intake Silencer. CIK homologated with filter, maximum intake diameter(s) 23mm. C Mounted airtight to the carburettor, mounting method free. C Fuel Tank. as per CIK regulations. C1.5 Clutch. As per CIK Article 18. Centrifugal engagement of the clutch must occur before an engine speed of 5000rpm has been attained. An efficient protection (made of aluminium or plastic material) covering the centrifugal clutch but leaving free access to the chain or belt must be fitted. C1.5.1 Transmission. As per CIK regulations. K 214 applies C1.6 Brakes. In accordance to CIK regulations and must be CIK homologated. C1.7 Tyres/Wheels. C1.7.1 Wheels are free. It is compulsory to use safety screws to prevent the tyre from leaving the rim (external part only). C1.7.2 Tyres are open but subject to event SR s. ABkC nominated tyres - Dunlop. Slick - Front 10 X 4.5 X 5 DDM, Rear 11 X 7.1 X 5 DDM, moulded with ABkC. Wet - Front 10 X 4.0 X 5 KT10 CIK, Rear 11 X 6.5 X 5 KT10 CIK. C1.8 General. C1.8.1 Retail Price. Not applicable. C1.8.1 Weight. Minimum 160kg with driver at all times. The minimum weight of the kart (without fuel) to conform to CIK regulations. C1.8.2 Plates. Yellow number plates with black numbers. K 196 applies. C1.8.3 Age. The Class is open to any driver aged 16 or over. A Junior may transfer to this senior class at any time during the year that he/she achieves the sixteenth birthday, subject to K 116 of the Competitors Yearbook. Having moved into the senior class he/she may not revert to a junior class. The class is also open to drivers aged 15 and over and who are in possession of an International B or A Kart licence. C1.9 Notes. C1.9.1 Data Logging is permitted, any information logged may be viewed on request by the scrutineers. C1.9.2 Homologation fiche copy and other eligibility documents regarding the equipment being used must be made available by the competitor to the scrutineers on request. C1.9.3 Sealing of engines at scrutineering to follow CIK and/or MSA practice. C2.0 Group Senior direct drive C2.1 Class Rotax Senior Max Affiliation Commercial: J.A.G. Engineering and ABkC C2.2 Introduction: This class endeavours to provide performance approaching that of conventional racing karts combined with low running costs and low noise levels. It is expected that the class will continue to evolve and the promoters reserve the right to alter the technical regulations at short notice to ensure safety of drivers, fairness of competition, economy and the wishes of competitors and changes of specifications from Rotax agreed by the MSA. Enquiries to J.A.G. Engineering, 1 Windsor Business Units, Wealden Business Park, Crowborough, East Sussex TN6 2JR, Tel: C2.3 Chassis: Any chassis conforming to MSA Direct Drive Regulations. C2.4 Engine: The only engine permitted in this class is the Rotax FR125 MAX. This engine is a single cylinder, liquid cooled, reed valve two stroke. All engines must be sealed between cylinder and crankcases with an official seal to prevent modification. All engines are issued with an official identity 35

38 card. It is the competitor s responsibility to ensure the numbers inscribed on the engine and seal correspond with those on the identity card at all times. Only authorised dealers will be issued with seals for use during maintenance of the engines. The identity card must be filled in and signed by an authorised dealer. The engine must be presented at scrutineering with the official class seal intact and the identity card lodged with the scrutineer. The card must be collected by the competitor at the end of the race meeting. (At club race meetings it is not compulsory for competitor s to lodge the identity card with the scrutineers. The identity card must be available for inspection by the scrutineers at any time during the race meeting). Should a seal become damaged, loose or lost during racing it must be reported to the meeting s scrutineer before leaving parc ferme. To allow the competitor to continue racing the scrutineer may at his discretion re-seal the engine with an official MSA seal. The new seal No. Must be entered in the engine s identity card and signed by the scrutineer. The engine must be taken to an official dealer with MSA seal intact to be re-sealed with an official class seal before competing at the next race meeting. C2.4.1 Modifications: The engine and its ancillaries may not be modified in any way unless otherwise indicated by these regulations or the official MSA fiche. UNLESS IT STATES THAT YOU CAN DO IT YOU CANNOT!!! The engine must be raced in standard form as manufactured and supplied by Rotax unless otherwise stated. Filing, grinding, polishing, surface treating, machining or lightening of any component is forbidden unless otherwise stated. The addition of material to any component is not allowed unless otherwise stated. All parts used in or on this engine must be of original manufacture or source as supplied by Rotax except where expressly allowed. The engine is to be used with air box, carburettor, fuel pump, radiator, wiring loom, ignition system and exhaust system as supplied by Rotax for the FR125 Max unless otherwise stated. Position and method of mounting the battery, wiring loom and exhaust system are free providing they are securely fixed to the satisfaction of the meeting s scrutineers and in accordance with MSA Regulations. Filing of crankcase to allow easy fitting of water connection is allowed. Fitting of helicoils and inserts to repair damaged threads is allowed, except for the spark plug thread in the cylinder head insert, providing such repairs are not used to derive any benefit other than rectification of damage. Minor damage to the cylinder or crankcase may be repaired by welding but only to restore the component to the original specification. The use of thermal barrier coatings/ceramic coatings on or in the engine or exhaust system is not allowed. Replacement connectors to repair wiring loom are permitted. Repairs to starter motor are also allowed. C2.4.2 Carburettor: Dell orto VHSB 34 QD or QS. All parts of the carburettor including the body are to be unmodified and run as supplied by Rotax. The carburettor must have VHSB 34 (cast in body) QD or QS (stamped on body). All parts must comply with the official fiche. The only adjustments allowed are the main jet, external air screw, throttle stop adjustment screw, and needle position on the five grooves provided. Needle jet atomiser FN 266. Choke jet 60.Idle jet 30, idle jet emulsion tube 30. Needle K27 or K98 (Rotax Part No ). Float needle valve 150. Slide 40. Floats 5.2gr. Atomiser Type 2. Alternative idle jet 60, idle jet emulsion tube 60, and 3.6gr floats may be used. Idle jets, idle jet emulsion tubes and floats may not be mixed and only used in one of the two following combinations:- Combination 1: Idle jet 30, idle jet emulsion tube 30, floats 5.2gr; Combination 2: idle jet 60, idle jet emulsion tube 60, floats 3.6gr. The venturi must have 34 cast and 12.5 or 8.5 stamped on the top of the venturi. Throttle cable and adjusters are free. It is permitted to use a single length of vent tube looped across the two air vents of the carburettor with a hole or slot cut in the side of the vent tube at the top of the loop. C2.4.3 Fuel Pump: Only Mikuni Fuel Pump DF Part No may be used. The fuel pump must be fitted to the bottom or side of the standard air box bracket. Only a single length of pulse tube from crankcase connector to fuel pump may be used. Only a single length of fuel line from fuel pump to carburettor may be used. It is permitted to use an in-line fuel filter as supplied by Rotax between the fuel tank and fuel pump. An Internal fuel tank filter is also permitted. No restrictors, fuel returns or additional reservoirs are permitted. 36

39 C2.4.4 Intake Silencer: Type 1 or Type 2 may be used. Type 1 must be used as supplied by Rotax for the FR125 Max engine unmodified, except for the bottom half of the air box, where the lug support ribs on the longitudinal side may be removed to allow the fitting of the air box support bracket. It is also permitted for the airbox lower half (type 1 only) to have a single 8mm maximum diameter hole positioned in a central location using the area of the injection mould marks as a guide. Type 2 must be used unmodified as supplied by Rotax for the FR125 Max engine. Air box type 1 or type 2 must be used with its filter and all component parts in place. The two halves of the airbox must be securely screwed together using 4 M6 screws. All 4 screws must be sufficiently tightened to securely clamp the two halves of the airbox together. a) In dry race conditions the air box MUST be positioned with inlet trumpets to the bottom of the box. The air box must be securely fitted in a manner to prevent rotation. b) In wet conditions i.e. only when declared a wet meeting by the Clerk of the Course the air box may be fitted in any position c) If the meeting is declared open: Kart on wet tyres position free; Kart on Dry tyres fix as dry d) It is permitted for the airbox lower half to have a single 8mm maximum diameter hole positioned in a central location using the area of the injection mould marks as a guide. C2.4.5 Exhaust System: Exhaust System: Only TYPE B Part No exhaust may be used. The exhaust system and silencer may not be modified in any way except for the addition of brackets to allow easy fitting. The pop rivets securing the silencer end plate may be replaced with screws. The use of a jubilee clip to secure the end plate pop rivets or screws is allowed. These modifications are allowed providing there is no benefit in performance. It is permitted to paint the exhaust system with black paint. The use of any other coating or plating is not allowed. It is permitted to make minor repairs by welding or braising to the exhaust system providing there are no alterations to the original dimensions. C2.4.6 Radiator: The radiator must be fitted to the right hand side of the engine using standard hoses and connections as supplied by Rotax. Engines using the thermostat cooling system must use the system in its entirety which comprises of thermostat head cover, radiator, radiator cap, radiator hoses, steel crankcase water hose connecting tube and radiator bracket. It is permitted to use the thermostat cooling system with or without the thermostat in place. The use of alternative hose clips and screw fixings are permitted. Blanking of the radiator is free providing it does not necessitate the modification of the original components other than simple attachment. Minor repairs to the radiator are allowed. C2.4.7 Ignition unit: DENSO digital battery ignition, variable timing with no adjustment. Ignition coil must have and DENSO moulded on the case. The ignition coil must have three-pin connection. The ignition coil must be mounted by means of two original rubber mounting blocks or equivalent to the gearbox cover. In the case of chassis component interference with the original mounting position it is permitted to relocate the ignition coil by the use of an extension bracket. The extension bracket must be attached to the original gearbox cover mounting holes. The ignition coil must be mounted by means of two original rubber mounting blocks or equivalent. Spark plug cap must be marked with NGK TB05EMA. Ignition switch can be either On-Off type, part number , or Automatic fuse type, part number Any make of battery is permitted provided it is of the same specification as supplied by Rotax for the FR125MAX 12v/6.5Ah, 12V/7.2Ah or 12v/9Ah. FIAMM-GS type FG20651, FG20722, FGHL20722, FGH20902, YUASA YT7B-BS and ROTAX BATTERY FX7-12B recommended. C2.4.8 Spark plug: The only spark plugs permitted are as listed and must be unmodified with sealing washer in place. The list of spark plugs is as follows: Denso IW24, IW27, IW29, IW31. NGK BR8 EG, BR9 EG, BR10 EG, B8 EG, B9 EG, B10 EG, B8 EGV, B9 EGV, B10 EGV, BR8 EIX, BR9 EIX, BR10 EIX. Other makes/types may be added to this list by J.A.G.; details will be published in official bulletin. 37

40 C2.5 Transmission: Direct from the engine to the rear axle via a single length of chain. The clutch supplied with the engine must be used with its standard components. The clutch must engage at a maximum engine speed of 3000 rpm [see K 214]. C2.6 Brakes: Hydraulic disc brake operating on rear wheels only. C2.7 Tyres: Dry: VEGA SL6 Marked JAG 10x front, 11x rear. Wet: VEGA W2 Marked JAG 10x front 11x rear C2.8 General. An ignition kill switch must be fitted and must be identified with a blue triangle to assist marshals in the event of an incident. C2.8.1 Retail price: Not applicable. C2.8.2 Weight: Minimum of 162kg including driver at all times. C2.8.3 Number Plates: Blue with white numbers. K 196 applies. C2.8.4 Non-Technical items. The use of alternative fasteners, washers, hose clips, fuel and pulse line is allowed unless otherwise specified. The use of additional and alternative earth straps is allowed. The use of additional air box support brackets, radiator support brackets, coil-mounting brackets, chain and clutch guards is allowed providing the fitting of these does not necessitate modification of the original components. C2.8.5 Age: The class is open to any driver aged 16 or over. A junior may transfer to this senior class at any time during the year that he/she achieves their sixteenth birthday, subject to K 116 of the Competitors Yearbook. Having moved into the senior class he/she may not revert to a junior class. C2.9 Data logging: Data logging is permitted, data logging systems with or without memory may be used. It is only permitted to take readings of engine rpm, engine water temperature, speed of 1 wheel, an X/Y accelerometer, lap times and split lap times. The engine water temperature sensor may only be fitted in the position provided in the cylinder head cover for this attachment. The rpm, may only be recorded via a sensor on the HT lead to sense spark plug pulses. The HT lead must remain a single length from ignition coil to spark plug cap. The fitting of these sensors is only permitted providing there is no modification to the original engine components. C2.10 ROTAX SENIOR MAX/177 Minimum weight limit of 177kg including driver at all times. The driver must, in full racing equipment, weigh a minimum of 85kg at all times. In all other respects the class must follow Formula Rotax 125 Max regulations. Number Plates: Green plates with white numbers. K 196 applies. C3.0 Group Senior (Direct Drive) C3.1 Class KF2 Affiliation CIK/MSA/(ABkC) C3.2 Introduction. This class is running as part of the ABkC Super One Series Championship and may be run alongside other classes, e.g. KF1, Formula 100 National or Formula Rotax 125 Max. The class mimics the CIK European class in all respects except for rear bumper, weight and tyres, where a single tyre is selected from the CIK list for use in the class. All CIK references refer to the Yearbook unless otherwise specified. This class has superseded Intercontinental A. C3.3 Chassis. C3.3.1 Must comply with MSA Safety and Technical Regulations. C3.3.2 Currently CIK homologated for Intercontinental A or KF2. A chassis once homologated is eligible for six years use. New CIK homologated chassis have been introduced from which will be eligible for this class. 38

41 C3.3.3 Bodywork. As per CIK technical regulations and currently CIK homologated. When wet tyres are fitted only CIK regulations apply. C3.3.7 Bumpers. As per CIK technical regulations and currently CIK homologated. CIK homologated rear protection system or MSA specification rear bumper is permitted in this class. C3.4 Engine. C3.4.1 Single cylinder 125cc engine CIK homologated for use in KF2 as per Article 20, base homologation from KF4 as per CIK Article 18. C3.4.5 Carburettor. CIK homologated butterfly carburettor with a maximum venturi internal diameter of 24mm, comprising 2 jet adjustment screws. C3.4.4 All systems of injection and/or spraying of products other than permitted fuel are forbidden. C3.4.6 Ignition. Homologated ignition system with a specific limiter at 15,000 rpm. Any electronic system allowing an auto-control of the parameters of function of engine while the kart is in motion is forbidden. An engine cut out switch is mandatory the switch must be located in such a way that it is possible for the driver normally seated in his driving position to trigger it. A sealed (maintenance free) battery must be fitted. C3.4.7 Exhaust. CIK homologated as per CIK Article 18 and 20. Additional silencers are permitted. MSA Yearbook noise levels apply. C3.4.8 Intake Silencers. CIK homologated with filter, maximum intake diameter(s) 23mm. C3.4.9 Mounted airtight to the carburettor, mounting method free. C Fuel Tank. as per CIK regulations. C3.5 Clutch. As per CIK Article 18. Centrifugal engagement of the clutch must occur before an engine speed of 5000rpm has been attained. An efficient protection (made of aluminium or plastic material) covering the centrifugal clutch but leaving free access to the chain or belt must be fitted. C3.5.1 Transmission. As per CIK regulations. K 214 applies. C3.6 Brakes. In accordance to CIK regulations and must be CIK homologated. C3.7 Tyres/Wheels. C3.7.1 Wheels are free. It is compulsory to use safety screws to prevent the tyre from leaving the rim (external part only). C3.7.2 Tyres are open but subject to event SR s. ABkC nominated tyres Bridgestone: Slick - YGB Front 10 X 4.5 X 5, Rear 11 X 7.1 X 5, MSA moulded on the side wall Wet - YEJ Front 10 X 4 X 5,. Rear 11 X 6.0 X 5 C3.8 General. C3.8.1 Retail Price. Not applicable C3.8.2 Weight. Minimum 160kg with driver at any time. The minimum weight of the kart (without fuel) to conform to CIK regulations. C3.8.3 Plates. White with black numbers. K 196 applies. C3.8.4 Age. The Class is open to any driver aged 16 or over. A Junior may transfer to this senior class at any time during the year that he/she achieves the sixteenth birthday, subject to K 116 of the Competitors Yearbook. Having moved into the senior class he/she may not revert to a junior class. To enable drivers to qualify for CIK championships a dispensation has been issued for drivers over the age of 15 years to compete in qualifying rounds provided that their previous experience included JICA or KF3. The class is also open to drivers aged 15 and over and who are in possession of an International B or A Kart licence. C3.9 Notes. 39

42 C3.9.1 Data Logging is permitted, any information logged may be viewed on request by the scrutineers. C3.9.2 Homologation fiche copy and other eligibility documents regarding the equipment being used must be made available by the competitor to the scrutineers on request. C3.9.3 Sealing of engines at scrutineering to follow CIK and/or MSA practice. C4.0 Group Senior (Direct Drive) C4.1 Class Formula 100 National/K100 Affiliation ABkC C4.2 Introduction. This class is offered as part of the Super One Series Championship. The Formula 100 National Class, which may also be referred to as K100, is an economy class where new or second-hand reed or rotary valve engines may be matched with a variety of chassis and a harder wearing tyre. A new list of engines became valid for this class on from the last period of CIK 100cc engines homologated for Formula A and Intercontinental A. No further engines will be added to the list. A method of limiting the maximum rpm of the engines via a specified front sprocket and maximum rear sprocket by club supplementary or championship regulations is permitted. C4.3 Chassis. Any 100cc chassis to MSA Regulations. C4.4 Engine. Any reed or rotary valve engine homologated by the CIK for use in Formula A in the period 2004 to 2006 is eligible for this class plus any reed or rotary valve engine homologated by the CIK or MSA in previous periods. See APPENDIX 2. All engines must remain as homologated by the CIK or MSA except for the latitude allowed below. Tuning limitations: a) no form of variable ignition that may be adjusted whilst the kart is in motion. b) modifications to the engine are allowed provided that the following are not varied. INTERNAL i. Stroke ii. Bore (outside the maximum capacity limits). iii. Connecting rod centre length (magnetic material obligatory). EXTERNAL i. Number of carburettors and choke diameter. ii. Modification of the external appearance of the engine, this does not include carburettor, ignition, exhaust or engine fixings, provided the homologated position is not modified. All systems of injection and/or spraying of products other than permitted fuel are forbidden. Additionally water/liquid cooled variants as listed in Appendix 2 may be accepted in this class and that in addition to the above tuning limitations the number of transfer passages and inlet ports in the cylinder and crankcase and the number of exhaust ports and passages have not been modified. No further additions to this list will be accepted. C4.4.1 Carburettor. A single butterfly carburettor with centre axle and a maximum venturi diameter of 24mm for a minimum distance of 2mm including tolerance. C4.5 Transmission. The drive must be direct, so that the crankshaft and rear axle are connected by a single length of chain or belt. C4.6 Brakes. May be hydraulic or mechanical disc brake operating on the rear wheels only to MSA regulations. 40

43 C4.7 Tyres. Vega. Slick: SL6 Front: 10 x 4.6 x 5 Rear: 11 x 7.1 x 5, marked GB on the sidewall. Wet: W2 Front: 10 x Rear: 11 x 6.0 x 5 marked GB on the sidewall C4.8 General. C4.8.1 Retail Price. Not applicable. C4.8.2 Weight. Minimum 160kg*. C4.8.3 Plates. Green number plates with white numbers. K 196 applies. C4.8.4 Age. The Class is open to any driver aged 16 or over. A Junior may transfer to this senior class at any time during the year that he/she achieves the sixteenth birthday, subject to K 116 of the Competitors Yearbook. Having moved into the senior class he/she may not revert to a junior class. C4.9 Notes. C4.9.1 Formula 100 National/175 (ABkC) with a minimum weight limit of 175kgs with driver on the completion of any part of the event. Using Green number plates with white numbers and a white 2.5cm approx. horizontal line at the base of the number plate. K 196 applies. The driver must, in full racing equipment, weigh a minimum of 80kgs at the completion of any part of the event. In all other respects the class must follow the 100 National regulations. C5.0 Group Senior (Direct Drive) C5.1 Class Honda Senior Affiliation ABkC C5.2 Introduction. Budget Senior class. This class is included in the Super Two ABkC Four Stroke Kart Championship. The engine is homologated with the MSA. Full details from ABkC at Stoneycroft, Godsons Lane, Napton, Southam CV47 8LX. Website: C5.2.1 The use of a rev-counter and data logging is permitted. C5.3 Chassis. Wheelbase to be between cms The rear axle is to be constructed from 30 mm nominal diameter solid or hollow magnetic material. An extended width rear bumper is mandatory. The bumper is to be constructed from a minimum 25mm nominal diameter 14g magnetic steel tube. The bumper must form an extended loop of 180mm ± 10mm centres with the bottom loop centre 60mm ± 10mm from the ground in dry configuration. The horizontal rails must be wider than the outer chassis rails. The bumper must be supported in a minimum of two places from the chassis and be of such a construction to withstand substantial impact. In side view the bumper will be in the vertical plane. The overall width of the bumper must not exceed the rear width of the kart at any time; The measurement to be taken at the outside of the rear wheel or tyre, whichever is the greater and must cover a minimum of 50% of each rear wheel/tyre at all times. Adjustable width bumpers are not permitted. C5.3.1 Side Pods. The fitting of side pods is mandatory and they must comply with current MSA side pod regulations but with the following additional provision. Side pods may be cut away on their inner, upper and lower surfaces by the minimum amount to clear an engine and its attachments. The upper and lower surfaces may be cut away up to a maximum of half the width of the surface. C5.4 Engine. Twin Honda engines of the GX160T1 QHQ4 or GX160UT1 QHQ4 designation are to be fitted. Engines must comply with the the ABkC Honda GX160 Technical Regulations Version 3 of January 2008 or as subsequently modified which are available from the ABkC. C5.5 Transmission. A dry air cooled centrifugal clutch which cannot be adjusted in position, of Noram, Horstman, Maxtorque 4000 or Premier manufacture is to be used to transmit drive with maximum engagement speed of no more than 2500 rpm engine speed. Drive is to be by 219 chain or by belt. Drive protection must be according to current MSA regulations. Chain protectors may be attached to the sprockets. 41

44 C5.6 Brakes. One mechanical/hydraulic disk brake to be fitted to the rear axle and disc to be made of metal only. C5.7 Tyres. Tyres are as follows:- Slicks: Dunlop SL1 Front: 10 x 4.5 x 5 Rear: 11 x 7.1 x 5. Wets: Dunlop KT3 Front: 10 x 3.6 x 5 Rear: 11 x 6.0 x 5 C5.8 General C5.8.1 Retail price. Not applicable C5.8.2 Weight. Minimum weight of the kart inclusive of engine, driver and engine oil is to be not less than 175kgs. C5.8.3 Plates. Number plates are to be white with red numbers. K 196 applies. C5.8.4 Age. 16 years plus. The Senior class for those who are 16 years and above except for existing competitors transferring from a Junior class, subject to K 116 of the Competitors Yearbook. C5.8.5 Honda will not accept warranty claims on engines used in any practice or racing capacity. C6.0 Group Senior (Direct Drive) C6.1 Class Formula Blue Affiliation NKRA C6.2 Introduction. A box stock economy/club Class for 100cc liquid cooled TaG racing engines. The control of the class regulations rests with the NKRA. C6.3 Chassis. Must conform to MSA regulations, homologation not required. C6.4 Engine. IAME Lynx Tabor Tag and Lynx Maxi Tabor Tag 2 stroke, liquid cooled 100cc engine. This engine must conform to the manufacturers/uk importers specifications as lodged and agreed with the MSA. Its function must remain in the condition as intended and designed. No other modifications or alterations are permitted except where expressly allowed. The engine must be raced in standard form as manufactured by IAME. Filing, grinding, polishing, surface treating, machining or lightening of any component is forbidden unless otherwise stated. The addition of material to any component is not allowed unless otherwise stated. All parts used in or on this engine must be of original manufacture or source except where expressly allowed. The following parts must be marked and be sequential numbered by the Importer (Tabor): power box 5A, cylinder, crank case, clutch, clutch drum, ignition, piston. These sequentially marked numbers must be recorded with the importers (TABOR) prior to racing. Where replacement is required during race day, then the scrutineer must be advised in print prior to race use. The engine is to be used with airbox, carburettor, water pump, radiator, wiring loom, ignition system and exhaust system as supplied by the manufacturer. The ignition/alternator unit must be in operation at all times and the timing must be within the preset parameters. Maximum bore Lynx and Lynx Maxi The battery must be fitted within the metal enclosure as supplied and mounted on the left hand chassis rail using original specification brackets/clamps. Starting system must be on-board system as supplied; no additional starting equipment can be fitted or used Engine eligibility will be determined by the NKRA Eligibility Scrutineer with support and advice from the Importer (Tabor). Only the following plugs may be used. Bosch WCS; Champion N, NG, NR; Densso WEN, WEPT, WES-GU, Motacraft AG, AGX. NGK; BEG BEV, BEGV, BEGP.BREG Heat range is free. The radiator must be fitted to the left hand side of the kart using standard hoses and connections. Fitting of helicoils and inserts to repair damaged threads is allowed, providing such repairs are not used to derive any benefit other than rectification of damage. The use of thermal barrier coatings/ceramic coatings on or in the engine or exhaust system is not allowed. Blanking of the radiator is free providing it does not necessitate modification of the original components other than by simple attachment. Minor repairs to the radiator are allowed. UNLESS IT STATES THAT YOU CAN DO IT YOU CANNOT!! 42

45 C6.4.1 Carburettor. Tillotson 360 unmodified. No added/extra components of any description that could affect airflow between the mouth of the carburettor and the reed block may be used. The inlet spring must be as original, unmodified and of the same length. Gasket set DG 1HL, inlet set RK117HL. An official carburettor restrictor from the NKRA list must be used. See below. C6.5 General Equipment. While taking part in racing or official practice only a revolution counter, lap timer, or temperature gauge may be fitted. All equipment designed for measuring data that can be transmitted either mechanically or electronically to another receiver either during or after motion is prohibited. This applies whether the capacity to do so has been permanently removed (by anyone other than the manufacturer or official importer), or not. All sensors and related wiring and brackets relating to such equipment must be removed from the kart for racing and official practice. The exception to this is where officially sanctioned cameras and/or transponders and/or dummy camera units are required by the organisers of the race meeting. C6.6 Tyres. Dry: LeCont LH TAB 10x4.50-5; 11x710-5 Wet: LeCont W TAB 10x4.20-5; 11x600-5 C6.7 Weight. 143kg (Lynx) Gold TAB kg (driver minimum weight 63kg) (Lynx) Red TAB kg (driver minimum weight 73kg) (Lynx) Grey TAB kg (driver minimum weight 83kg) (Lynx) Blue TAB 21 (Lynx Maxi) TBA TAB kg (driver minimum weight 93kg) (Lynx) Blue TAB 21 (Lynx Maxi) TBA TAB kg (driver minimum weight 103kg) (Lynx) Blue TAB 21 (Lynx Maxi) TBA TAB 21 Note: Driver minimum weights are race weight with full racewear and helmet. C6.8 Plates. Yellow number plates with black numbers. K 196 applies. C6.9 Age. The Class is open to any driver aged 16 or over. A Junior may transfer to this senior class at any time during the year that he/she achieves their sixteenth birthday. Having moved into the senior class he/she may not revert to a junior class. C6.10 Retail price: The maximum retail price for the complete engine excluding carburettor and exhaust is 870 plus VAT. C6.11 Engine. The NKRA reserves the right to amend restrictor sizes should performance require adjustment on safety grounds and to preserve comparable kart performance. 43

46 D1.0 Group. Senior (Gearbox) D1.1 Class. Formula 125 ICC (UK)/(KZ2 UK) Affiliation. ABkC/BSA/NKF D1.2 Introduction. ~ This class mimics the CIK KZ2 class but with some relaxations to permit existing National engines to be used by replacing the cylinder head and carburettor on older engines, and permits British style karts in this category. Engine regulations have been brought into tighter conformity to CIK KZ2 from 2005 e.g. port heights. Karts conforming to the 125 ICC (UK) technical regulations may race in 125 Open at their class weight of 180kg. There may be tighter conformity in future with CIK regulations in ICC (U.K.), e.g. homologated exhaust pipes, homologated gear ratios and chassis type. A Super ICC / KZ1 sub-category has been introduced as the premier national championship class. ICC (U.K.) and Super ICC / KZ1 will have ABkC Super 4 national championships. D1.3 Chassis. Any chassis complying with MSA regulations for gearbox karts. All chassis main parts must be firmly secured together on to the chassis frame. Flexible connections are only authorised for the conventional steering knuckle support, and for the steering system. All other devices with the function of one, two or three dimensional joints are forbidden. The chassis frame is the central and main supporting element of the entire vehicle. It must have the necessary strength in order to be able to absorb the loads which are produced when the vehicle is in motion. Any hydraulic, pneumatic or elastomeric elements for damping chassis oscillation are forbidden. D1.3.1 Bodywork. Sidepods, front fairing and front Nassau panel to MSA Competitors Yearbook regulations and where appropriate Appendix 4 are required to be fitted at all times for karts in short circuit trim, the only configuration permitted in short circuit racing. A bubble conforming to Blue Book K and Drawing 7 is permitted as an alternative to a Nassau panel. Wedge shaped front fairings are not permitted. D1.4 Engine. Any water cooled single circuit* single cylinder reed valve engine homologated by the CIK for the KZ2 class with the exception that pre-2004 engines may be a variant with a cassette gearbox, or may have been homologated for Formula C (reed valve only) or registered with MSA. Maximum cylinder cubic capacity 125cc. *An additional inner circuit for the normal functioning of a thermostat is allowed. The original parts of the homologated engine must always comply with and be similar to the photographs, drawings and physical heights described on the homologation form. D1.4.1 Tuning Regulations. D All modifications to the homologated engine are allowed, except: a) Inside the engine: stroke bore (outside maximum limits) connecting rod centreline number of transfer ducts and inlet ports in the cylinder and crankcase number of exhaust ports and ducts. The creation of new exhaust ducts or ports is forbidden. the total exhaust opening angle is 199 degrees maximum as per CIK KZ2 and KZ1 regulations. b) Outside the engine: number of carburettors (1 only) and diameter of choke external characteristics of the fitted engine, except for machining necessary for the application of bar code stickers (via homologation extension). D a) The reed-valve box (dimensions and drawing) must be according to the homologation form. Reedvalve box cover is free. Reed petals may be varied so long as they fit the manufacturer s reed block. b) Modification of external appearance of the engine does not include the fixations of the carburettor, of the ignition, of the exhaust, of the clutch or of the engine itself, provided that their homologated position is not modified. 44

47 PUBLICATIONS, TECHNICAL PAPERS & CLUB EQUIPMENT Subject to their availability the products and their prices listed below are correct at the time of going to press, but may be changed without further notice. PUBLICATIONS (VAT zero rated) MSA Competitors and Officials Yearbook MSA Kart Race Yearbook MSA Motor Club Manual UK Circuit Guide Karting Circuit Guide Euro Circuit Guide Motor Vehicles (Competition & Trials) Regulations 1969/74/ CLUB EQUIPMENT (VAT standard rated incl.) Club Membership cards for Signing-On Sheets - Competitors/Officials FOC available on website Signing-On Sheets - Media FOC available on website Prohibited Area rigid PVC warning signs per pack of Motor Sports Can Be Dangerous rigid PVC warning sign per pack of Special Stage Warning day-glo warning sign Special Stage Danger day-glo warning sign Safety Tabbards (Yellow) TECHNICAL PAPERS (VAT zero rated, except = standard rate) MSA Rollcage Certificate *each MSA Historic Rally Vehicle Identity Form Registration MSA Competition Car Log Book payable to Scrutineer MSA Homologation Fiche (Kart) each FIA Historic Technical Passport Application (including App. K Copy, excluding Registration Fee) each FIA Current Homologation Papers for any UK car each FIA Current Homologation - Extension of any UK car each FIA Homologation Papers for any non UK car each FIA Current Homologation - Extension for any non UK car each FIA Lapsed Homologation Papers for any UK car each FIA Lapsed for any non UK car each MSA Original Roll Cage Registration (Trade only) MSA Production Kit Car Forms (Trade only) - Registration each MSA Production Kit Car Forms copy each * If to be posted to an address overseas 7.00 to be added to cover postage If to be posted to an address overseas 9.50 to be added to cover postage For the above items, please address order(s) to: Sales Dept, Motor Sports Association, Colnbrook SL3 0HG Purchase on-line from 45

48 c) Ignition system must be CIK homologated for the class. d) Cylinder head volume must be a minimum of 13cc using the CIK specification plug insert and measured as per the CIK method see Appendix 5. Ambient temperature is defined as any temperature between 5 C and +50 C. Spark plugs are free but must be un-modified and the thread must not protrude into the combustion chamber when fully tightened. Modification to the spark plug thread is not permitted except for helicoil repair so long as the repair is to the full depth of the thread. e) All systems of injection and/or spraying of products other than permitted fuel are forbidden. f) It is permitted to add a mass to the ignition rotor; it shall be fixed by at least 2 screws, without any modification to the homologated rotor. D1.4.2 Silencing. Intake. See APPENDIX 3. Note that Motivation D&D intake-boxes are not permitted from Exhaust. See APPENDIX 3. Homologated exhaust is not mandatory, the magnetic steel sheet metal thickness must be 0.75 mm minimum. D1.4.3 Carburettor: Carburettor made of aluminium, with a venturi type diffuser with a maximum diameter of 30 mm round. The carburettor must be the Dell Orto VHSH 30 (CS) or (BS) Code The carburettor must remain strictly original. The only settings allowed may be made to: the slide, the needle, the floats, the float chamber, the needle shaft (spray), the jets and the needle kit, subject to all the interchanged parts being of Dell Orto origin. The incorporated petrol filter and the plate (part No. 28 on the technical drawing No. 7) may be removed; if they are kept, they must be original. D1.5 Transmission. Changes to gear ratios are permitted, except that number of gears must remain six. Control must remain mechanical, without any servo system or ignition cut system. D1.6 Brakes. Brakes as K D1.7 Tyres. This class is limited to 5in diameter wheels with a maximum tyre width of 7.1in. Dry: Dunlop Front: 10 x 4.5 x 5 SL4 marked ABkC Rear: 11 x 7.1 x 5 SL4 marked ABkC. Wet: Dunlop KT10 Front: 10 x 4.50 x 5 Rear: 11 x 6.50 x 5. D1.8 General. D1.8.1 Retail Price. All engines must be available complete with ignition (excluding carburettor, engine mount, silencer and exhaust) for not more than 2050 plus VAT in the same form as homologated. D1.8.2 Weight. (Appendix 4, D.6) Minimum 180kg short circuit trim. D1.8.3 Plates. Green number plates with white numbers. K 196 applies D1.8.4 Age. The class is open to any driver aged 16 or over on short or long circuits. A junior may transfer to the class at any time during the year that he or she attains their sixteenth birthday, provided that they have previously competed in Junior Gearbox and hold a minimum of a National A licence. The class is also open to drivers aged 15 and over and who are in possession of an International B or A Kart licence. Championship regulations may permit an over-35 year class, possibly with a higher weight limit. D1.9 Formula 125 Super ICC/KZ1 Affiliation ABkC/NKF This class mimics the CIK class KZ1 in all respects except for those listed below: D1.9.1 Chassis. CIK homologated for KZ1/KZ2 and complying with MSA regulations for gearbox karts. D1.9.2 Bumpers. Front and rear bumpers to MSA technical regulations. D1.9.3 Carburettor. As per D D1.9.4 Weight. Minimum 175kg short circuit trim, including driver at all times. D1.9.5 Plates. Yellow plates with black numbers. K 196 applies. 46

49 D1.9.6 Tyres. As per D 1.7. Championship regulations may specify dry tyres as Dunlop DCH or DDM. D2.0 Group Senior (Gearbox) D2.1 Class Formula 125 Open Affiliation ABkC/BSA D2.2 Introduction. This club class no longer has a national ABkC championship. The class is loosely based on the old CIK Formula C with some restrictions and modifications. The ABkC will continue to offer a class where rotary valve engines can be used until at least the end of Karts conforming to the Formula 125 ICC (UK) regulations may compete in this class at their class weight of 180kg. D2.3 Chassis. Must conform to current MSA Technical Regulations and MSA Safety Regulations. All chassis main parts must be firmly secured together on to the chassis frame. Flexible connections are only authorised for the conventional steering knuckle support, and for the steering system. All other devices with the function of one, two or three dimensional joints are forbidden. The chassis frame is the central and main supporting element of the entire vehicle. It must have the necessary strength in order to be able to absorb the loads which are produced when the vehicle is in motion. Any hydraulic, pneumatic or elastomeric elements for damping chassis oscillation are forbidden. D2.3.1 Bodywork. Sidepods, front fairing and front Nassau panel to MSA Competitors Yearbook regulations and where appropriate Appendix 4 are required to be fitted at all times for karts in short circuit trim. A bubble conforming to Blue Book K and Drawing 7 is permitted as an alternative to a Nassau panel. Wedge shaped front fairings are not permitted. D2.4 Engine. Any 125cc engine previously or currently eligible for CIK Formula C (single cylinder engine with reed-valve or rotary-valve intake, air cooled by natural air flow or water cooled, with one single circuit*, registered by the CIK-FIA before March 2000 and valid, or water cooled single cylinder engine with reed valve intake, with one single circuit*, homologated by the CIK-FIA in ICC) plus any engine registered with the MSA for the pre 2004 National 125 class or any ICC homologated engine with a cassette gearbox option from the original manufacturer. *An additional inner circuit for the normal functioning of a thermostat is allowed. Active power valves are not permitted but may be used if locked in position. D2.4.1 Tuning Regulations. Modifications to the engine are allowed, providing the following are not varied. a) Stroke. b) Bore (outside maximum limits). c) Connecting rod centre line (magnetic material only). d) Crankshaft must be on the manufacturer s parts list. e) External appearance of the engine other than carburettor, ignition system, carburettor rubber mounting, clutch cover, engine mounting points and reed block where applicable. (The addition of a fuel pulse pump adapter is permitted.) f) Number of carburettors (1 only). The material magnesium is not permitted. g) All systems of injection and/or spraying of products other than permitted fuel are forbidden. h) No form of electronic carburetion system. i) No form of variable ignition that may be adjusted whilst the kart is in motion. D2.4.2 Silencing. Intake See Appendix 3. Exhaust See Appendix 3. 47

50 D2.5 Transmission. Maximum of six gears. D2.6 Brakes. Brakes as K D2.7 Tyres. This class is limited to 5in diameter wheels with a maximum tyre width of 7.1in. Dry Tyres: Dunlop. Front 10 X 4.5 X 5 SL4 marked ABkC. Rear 11 X 7.1 X 5 SL4 marked ABkC. Wet Tyres: Dunlop KT10 Front 10 x 4.50 x 5, Rear 11 x 6.50 x5. BSA permits the use of 6in diameter wheels in long circuit and slick tyres fronts up to 5.5in maximum width, rears maximum width 7.1in on long circuit events only. D2.8 General. D2.8.1 Retail Price. Not applicable. D2.8.2 Weight. (Appendix 4, D.6) Minimum 185kg short circuit trim. Long circuit bodywork not permitted. D2.8.3 Plates. Blue number plates with white numbers. K 196 applies. D2.8.4 Age. The class is open to any driver aged 16 or over on short or long circuits. A junior may transfer to the class at any time during the year that he or she attains their sixteenth birthday, provided that they have previously competed in Junior Gearbox and hold a minimum of a National A licence. D3.0 Group Senior (Gearbox) D3.1 Class Formula 250 National Affiliation ABkC/BSA D3.2 Introduction. This class was previously the 250S class and is restricted to registered series production single cylinder engines of a maximum of 250cc designed to have no more than five gears, or modified to have no more than five gears, and with piston and/or reed induction into the original induction tract. The Rotax 257 in five or six speed form is permitted in short circuit unless championship regulations state otherwise. This class is the only 250 mono cylinder class recognised by the ABkC for short circuit. CIK homologated 5-speed engines for Intercontinental E or SuperKart Division 2 are eligible within this class if registered at the start of a registration period, the next period commences See Appendix 2 for eligible engine list. D3.3 Chassis. Any chassis complying with MSA regulations for gearbox karts. All chassis main parts must be firmly secured together on to the chassis frame. Flexible connections are only authorised for the conventional steering knuckle support, and for the steering system. All other devices with the function of one, two or three dimensional joints are forbidden. The chassis frame is the central and main supporting element of the entire vehicle. It must have the necessary strength in order to be able to absorb the loads which are produced when the vehicle is in motion. Any hydraulic, pneumatic or elastomeric elements for damping chassis oscillation are forbidden. Minimum wheelbase is 106cm. D Bodywork. Bodywork and/or front fairing are not mandatory in this class. D3.4 Engine. See Appendix 4 D.8.1 and Appendix 2 for the list of eligible engines. Tuning Rules Modifications to the engine are allowed, providing the following are not varied. a) Stroke b) Bore (outside maximum limits) c) Connecting rod centre line (magnetic material only) d) Crankshaft must be on the manufacturer s parts list e) External appearance of the engine other than carburettor, ignition system, reed block, carburettor rubber mounting, clutch cover, engine mounting points. (The addition of a fuel pulse pump adapter is permitted.) 48

51 f) Number of carburettors (1 only). The material magnesium is not permitted. g) All systems of injection and/or spraying of products other than permitted fuel are forbidden. h) No form of electronic carburetion system. i) The ignition system type is open but the electronic unit box and the coil must receive only one feeding energy source of the rotor/stator or of a battery and one crankshaft pick-up signal in order to set the ignition signal. The advance and cartography may under no circumstances be modifiable from the driving seat under normal racing conditions. D3.4.1 Silencing. Intake See Appendix 3. Exhaust See Appendix 3. D3.5 Transmission. Gearbox maximum of five gears except for the Rotax 257 as specified in D.3.2. Gear ratios can be varied. D3.6 Brakes. Brakes as MSA regulations D3.7 Wheels and Tyres. Limited to 5in diameter wheels with a maximum tyre width of 8in. On Long Circuits 5in or 6in wheels and tyres are permitted. Open or control tyre(s) will be specified in ABkC/BSA championship regulations. Slick: Maxxis CIK-MH-R Front: 10x Rear: 11x The Maxxis XP5 may be used at club meetings until only. Wets: Maxxis WT8 Front: 10x4.5-5 Rear: 11x D3.8 General. D3.8.1 Retail Price. Not applicable D3.8.2 Weight. Minimum weight with driver on the completion of any part of the event 195kg short (Appendix 4 D.6.2) or 200kg long circuit (Appendix 4 D.6.1) trim D3.8.3 Plates. White number plates with black numbers. K 196 applies. D3.8.4 Age. The class is open to any driver aged 16 or over on short circuits, or aged 17 and over on long circuits. D3.9 TECHNICAL REGULATIONS FOR DIVISION 2 SUPERKARTS (LONG CIRCUIT) D3.9.1 All karts must comply with the 2004 CIK regulations for Superkart Division 2 karts and the following exceptions: F250 National karts are eligible to compete in Div. 2 under their own class regulations. D3.9.2 Engine. Modifications to the engine are allowed, providing the following are not varied: a) Stroke b) Bore (outside maximum limits) c) Connecting rod centre line (magnetic material only) d) Crankshaft must be on the manufactures parts list e) External appearance of the engine other than carburettor, ignition system, reed block, carburettor rubber mounting, clutch cover, engine mounting points. (The addition of a fuel pulse pump adaptor is permitted) f) Number of carburettors (1 only) g) All systems of injection and/or spraying of products other than fuel are forbidden h) No form of electronic carburation system i) The ignition system type is open but the electronic unit box and the coil must receive only one feeding energy source of the rotor/stator or of a battery and one crankshaft pick-up signal in order to set the ignition signal. The advance and cartography may under no circumstances be modifiable from the driving seat under normal racing conditions. 49

52 D3.9.3 Gearbox. Ratios are free D3.9.4 Bumpers. Must comply with the MSA Yearbook Regulations D3.9.5 Tyres. Any tyre from Bridgestone, Dunlop and Maxxis are permitted D3.9.6 Weights. The minimum weight will be 200kgs D3.9.7 Noise. MSA NOISE REGULATIONS WILL APPLY. Drive by limits will be set for each circuit. The limit and position from which the readings will be taken will be specified in meeting SRs. D4.0 Group Senior (Gearbox) D4.1 Class 210 National Affiliation 210 Challenge D4.2 Introduction. This class will be part of the 210 Challenge and since has been administered by the 210 Challenge co-ordinator. The class regulations are not expected to change except for silencing requirements. D4.3 Chassis. In accordance with MSA Year Book Section K Regulations. D4.3.1 Bodywork: Bodywork and/or front fairing are not mandatory in this class. D4.4 Engine. Maximum 210cc. This class is for the Villiers 9E engine and associated models, together with modern replicas of that engine. The engine will consist of a single cylinder air-cooled two-stroke with gearbox mounted in unit. The engine shall be piston timed with a single carburettor. The ignition system shall be free in accordance with Appendix 4 D.3. The stroke shall be 72mm and the maximum bore 60.9mm. The engine shall be equipped with a single sparking plug. The maximum diameter of the cylinder barrel fins shall not exceed 160mm and the barrel shall have at least eight fins. The overall height of the cylinder barrel between flange faces shall be between 128mm and 133mm. The maximum diameter of the cylinder head shall not exceed 160mm and the height of the cylinder head shall not exceed 76mm. The head shall have at least eight vertical fins. The gearbox casing shall be of identical appearance to the original Villiers 9E, 10E or 11E pattern. The exhaust outlet to be in the same position to that of an original Villiers barrel and to take an exhaust pipe not larger than 1 3 4in OD. The engine mounting points to be as the original pattern and the contours of the crankcase to conform with the original Villiers outline. Reed valve induction is permitted, providing that the original position of the induction pipe is retained, and that the valve is only fitted in the induction tract. Reverse barrel permitted. The barrel retaining stud centres must remain in the original 9E, 10E and 11E positions and be on the original 70mm centres. All systems of injection and/or spraying of products other than fuel are forbidden. D4.5 Transmission. Maximum of four operative gears. D4.6 Brakes. In accordance with K D4.7 Tyres. Slick Dunlop SL3 front, 10 x 4.5 x 5 and rear 11 x 7.1 x 5. Wet Dunlop KT5 or KT6 or KT8 or KT10, front 10 x 4.0 x 5 and rear 11 x 6.5 x 5. Only complete sets of KT5 or KT6 or KT8 or KT10 may be used. D4.8 General. D4.8.1 Retail Price. Not applicable D4.8.2 Weight. Minimum weight with driver on the completion of any part of the event 190kg long circuit trim and 185kg short circuit trim D4.8.3 Plates. Red number plates with white numbers. K 196 applies. D4.8.4 Age. The class is open to any driver aged 16 or over on short or long circuits. A junior may transfer to the class at any time during the year that he or she attains their sixteenth birthday, provided that they have previously competed in Junior Gearbox and hold a minimum of a National A licence. 50

53 D Intake Silencing. See Appendix 3. D Exhaust Silencing. See Appendix 3. D4.9 Notes. D4.9.1 ABkC/BSA rules (which must be read in conjunction with the above). D Chassis. All chassis main parts must be firmly secured together or to the chassis frame. Flexible connections are only authorised for the conventional steering knuckle support, and for the steering system. All other devices with the function of one, two or three dimensional joints are forbidden. The chassis frame is the central and main supporting element of the entire vehicle. It must have the necessary strength in order to be able to absorb the loads which are produced when the vehicle is in motion. Any hydraulic, pneumatic or elastomeric elements for damping chassis oscillation are forbidden. 51

54 APPENDIX 1 MSA Homologated Chassis Formula Cadet Note that 1998 homologated chassis are no longer eligible for use in Formula Cadet Homologation Anderson Magic CHC ARC Sprinter CHC Drew Price AX6 Arrow CC BRM CSA/6/01 CC Biz JK3HC HC Bowman HC Dartford Solo Sonic CHC Deavinsons CHC-0801 ELK Cadet CHC Fox Mini CC Kamikazi Cadetti CC Swiss Hutless Cool CC Kartell Spirit HC Rakama Mike CC Biesse Mini CC M.B.A Mini-Comer CC LRG Karts Cadet CHC Mari Minikart CC Top Kart Mini 2000 CC Tony Kart Rocky (Trulli) CHC Parolin UK Revo CHC Patron Racing Knight CHC Project One HC Shark Tiger Shark M CC Piranha Cadet CHC Swiss Hutless UK Mini Cadet CC Simon Wright Braga CHC Zip Kart Puma CHC * CC= Comer Cadet, HC= Honda Cadet, CHC= Comer or Honda Cadet 2004 Homologation Arrow AX8 MIDGET 01/C/04 Tony Kart S.r.l ROCKY EXP 02/C/04 ZIP Kart ZIP BLADE 03/C/04 Tal-ko MONZA 04/C/04 Mac Minarelli STORM 05/C/04 LRG LRG CADET 06/C/04 Haase S.r.l BOMBER/SKIPPER 07/C/04 DK STNGER 08/C/04 Shark TIGER SHARK MK3 09/C/04 Wright GARDA 04 10/C/04 Project One HONDA CADET 11/C/04 Racing Mari MK11 12/C/04 Ital Course SRL IT 15 13/C/04 Swiss Hutless MINI CADET 14/C/04 MS Kart MS KADET UK 15/C/04 PCR MINIK4 16/C/04 Maranello RS-3 17/C/04 Biz JK3 18/C/04 CADET BRAKE BIREL SPA B - 1 H6/P22 - DL Homologation JKH Intrepid MAKY 01/C/07 NJR Octane KAOS 02/C/07 ZIP Kart STORM 03/C/07 ARC IKON 04/C/07 KnK JUVENILE 05/C/07 TWS INTERCEPTOR 06/C/07 Haase BOMBER 07/C/07 Arrow AX9 08/C/07 B.R.M CCO1 09/C/07 Wright GARDA 7 10/C/07 Project One Mk 3 11/C/07 Sodi MINI 12/C/07 Tony Kart Rocky UK 13/C/07 EKS MINI 14/C/07 CADET BRAKE Kelgate /C(B)/07 FRONT FAIRING Zip Mini Kart 01/C(FF)/07 NJR Eurostar Mini 02/C(FF)/07 Formula TKM Note that the 94 listed chassis are no longer eligible for use in Formula TKM Homologation Please note that from manufacturers are not permitted to sell new karts which do not bear the appropriate 1998 chassis markings. Tal-Ko Raider Tal-Ko Stealth Evolution Patron Knight TK Kartsport Boxer K BIZ TKM J BIZ TKM S Project One Evo Kestrel K4 (re-homologated) Kestrel K Wright 06 Suzuka Wright 07 Garda Rocket RMS Rocket Zip CD Zip CD Deavinsons Sprint TKM100/

55 Deavinsons Sprint TKM100/ Kartpro Stratos Formula TKM Dartford Solo Revenge Dartford Solo Taurus McMahon Shark Anderson Fontana Fullerton Tiger Fullerton Lion Lovato Smart Kart ARC K2000 E ARC K2000 C Vixen VB Bowman Flight Bowman Arrow Gillard TKM Gillard TKM Paul Carr Venom A (re-hom) Paul Carr Venom Ultima Kartell SDB Meteor Kartell SDB Evolution Wimbleton Daytona Slipstream Pukka O Neill Verde O Neill Verde All Turbo karts have been excluded from the homologation list and may not be raced in Formula TKM. None of the above karts may be sold as new 2001 Homologation Tal-Ko TKM Raider R Tal-Ko TKM Raider R Biz Karts Biz TKM Project One Project One EVO LRG Karts 8LRG TKM LRG Karts 2LRG TKM Dartford Solo Tornado Dartford Solo Revenge/ JKH Dynamite Shark M Shark M Shrewley Jade Zip Kart Cougar Deavinsons TO Simon Wright Braga Simon Wright Suzuka/ Kestrel K7 Stinger Anderson Magic John Mills JM Kart Modus Vixen VB ARC KZero 04-T ARC KZero Paul Carr Venom Attack Kartell Spirit Excell Kartell Spirit Excell Gillard Gillard TRT RT9 Mullet Longfield RMS Rocket None of the above karts may be sold as new Homologation Tal-Ko TKM Storm Tal-Ko TKM Blade ARC Elite SWRD Braga Modus M/S Vixen VB RM Wilson TEC-MEC Banshee RM Wilson TEC-MEC Voodoo Patron Knight Jade Elite Jade Elite Project 1 Project 1 Eclate Dartford Nimrod JKH Dynamite V JKH Dynamite V Gillard 209 EVO Gillard 208 EVO P Carr Venom Sidewinder P Carr Venom Shadow Re-Homologation ARC K ZERO 4-T Homologation Tal-Ko CRG Fiorano RM Wilson TEC-MEC Voodoo 001R07 Tal-Ko TKM Xtrac Tal-Ko TKM Edge Gillard Gillard ARC Spyder ARC Elite Evo Paul Carr Viper Jade Dominator Haase VB Parolin H2H Z-One

56 APPENDIX 2 Eligible Engines Formula 100 National 98/K100 Engine list available from the MSA. MSA registered engines for Formula ICC/125 Open Engine list available from the MSA. Formula 250 National Bombardier Rotax 257 (when modified to 5 speed form) Cagiva WMX 250/88 Cross. Honda CR250. Kawasaki KX250. KTM 544/545/546. Moto TM Cross 250. Suzuki RM250 Z to V ( inclusive). Yamaha YZ

57 APPENDIX 3 Silencing 1. Intake Silencers As from all classes will be required to have filtered air boxes. 1.1 In 100cc classes other than Senior and Junior Formula TKM only CIK-FIA homologated boxes are permitted for ABkC championship events. British made boxes conforming to the CIK specification may be used in club meetings by all 100cc classes other than the Formula TKM classes. CIK noise boxes conform to the following nominal specification: a) The intake silencer must make a petrol tight fit with the carburettor interface. b) The minimum volume of the silencer must be 1000cc. c) The material must be non splinterable plastic. d) Have a maximum of two openings for the air intake. e) The air intakes must be unmodified and be a maximum of 23mm diameter for Direct Drive and Junior Gearbox karts and maximum of 30mm diameter for all other gearbox karts. 1.2 A CIK homologated box must not be modified with the exception of drilling holes in the mounting flange and drilling a maximum of two holes in the box wall, for the sole purpose of mounting on gearbox karts. The carburettor adapter is free providing a petrol tight joint is made between the box and the carburettor. All gearbox karts must have a CIK intake box correctly fitted, or one that is approved by the ABkC for that class. 1.3 In order to obtain ABkC approval 10 boxes must be presented for inspection. The boxes must be professionally produced devices complete with production diagrams. During a noise test, which is made on an overhead microphone, static and on both sides of the kart, the box must give at least equal noise attenuation to a CIK intake box fitted to the same engine. The lap times with the box on test must be comparable with lap times using a CIK box. A sample of the box will be retained by ABkC as a reference. An ABkC approved box must be permanently marked with its ABkC approval code in order to be deemed legal for use. 1.4 The following intake boxes have been approved by the ABkC for use on all gearbox karts with the exception of the Europa, Junior Gearbox, ICC (UK) and Super ICC classes: Single Cylinder FIS/2RV Motivation Design and Development Filtered Induction Silencer System Assembly, side fitting for rotary valve gearbox class engines, fitted with Pipercross foam filter element. Approval expires 31/12/2010. Twin Cylinder FIS/2T Motivation Design and Development Filtered Induction Silencer System Assembly, side fitting for rotary valve twin cylinder gearbox class engines, fitted with Pipercross foam filter elements. Approval expires 31/12/2010. Single Cylinder FIS/2PR Motivation Design and Development Filtered Induction Silencer System Assembly, for reed valve or piston port induction single cylinder gearbox engines, fitted with Pipercross foam filter element. Approval expires 31/12/2010. It must be fitted with the intake trumpets facing towards the ground. Not applicable to 250E. Note that the intake box designated GB1/94 is no longer approved 1.5 Formula 210. All air entering the carburettor must flow through either a K & N cylindrical filter, Part No. RU 0840, or a K & N conical filter, Part No. RU These intake filters must only be used with an exhaust muffler conforming to An air box conforming to the CIK specification or an air box approved by the ABkC may also be used. 2. Exhaust Silencers 2.1 Unless specifically authorised exhaust lengths may not be varied whilst the kart is in motion. Any such system must be failsafe in operation, not present a hazard and incorporate a 55

58 measurable reduction in sound level. It should be noted that authorisation will only be given for applications for Formula 100 National as the majority of classes do not allow such systems. 2.2 The following regulations 2.3 and 2.4 are mandatory for all gearbox classes except Europa 125 Class B. The following regulation 2.5 is mandatory for all gearbox classes except 125 Europa Class B and 210 National. 2.3 Karts shall be provided with an exhaust silencer lying approximately parallel to the rear axle of the kart, and fed by a gas-tight tubed link pipe of a minimum 300mm length from the exit of the expansion chamber to the entrance of the silencer/muffler. In Formula 250E at least one silencer must lie approximately parallel to the axle. 2.4 The link pipe must have a bend of approximately 180 degrees for engines exhaust ported to the rear. For engines exhaust ported to the front, the bend must be between approximately 45 degrees and approximately 180 degrees. Formula 250E is exempt from these bend angle requirements. 2.5 The muffler must have an external minimum cross-section 100mm and a minimum canister length of 380mm. The canister must be used with muffling material and/or baffling plates to be an efficient silencer. The exhaust exit diameter of the canister must be no greater than 38mm. 2.6 Formula 250E: Mufflers as above, two to be fitted. 2.7 Formula 210. All gasses leaving the engine must pass through a muffler with minimum active length 47.5cm, external minimum cross-section 100mm, with an inner tube of maximum bore 4.0cm which must have perforations over the majority of its complete length. The muffler must be connected to the exhaust tailpipe by a nominal 180 degree bend or flexible pipe. 3. General 3.1 The black and orange flag will be shown during a race to signify that a kart is exceeding the sound level limit for the class or circuit. Drivers must return to the pits and report to the Clerk of the Course. If the silencing system is broken during a race the driver must stop in a safe place as soon as is practical and not attempt to continue or return to the pits. 3.2 Attention must be given to silencing systems maintenance. With the published reductions to permitted levels it is important that flex connections and joints are checked regularly and made good. Exhaust silencers that are capable of being repacked, such as Rotax 125 Max, can suffer from declining performance and it is essential that repacking is carried out in accordance with manufacturers instructions. 56

59 APPENDIX 4 ABkC Additional Regulations to the MSA Kart Race Handbook 2008 A. General The Association of British Kart Clubs (ABkC) was formed in 1990 to act as an interface between kart clubs and the sports governing body, the MSA, with whom there is a high degree of discussion and co-operation. The clubs are represented by a Steering Group, which is elected each year during the ABkC AGM, which is held in the Autumn. The regulations contained in the 2008 Kart Race Yearbook and referred to as ABkC affiliations and/or ABkC rules represent the class structure being used by the Association in its direct drive and gearbox national championships. All clubs affiliated to ABkC have agreed to use these regulations for their race meetings. Without this co-operation it would be impossible for drivers to move from club to club during the racing season and find the same race classes. This document should be used as an addition to the Club s Supplementary Regulations and used as the reference point for the classes. All ABkC clubs must run their meetings according to the regulations set down by the MSA. The officials and all safety regulations must conform to the current MSA Yearbook, the ABkC specific regulations are only the class regulations. The ABkC reserves the right to conform to changes in CIK regulations that occur after the publication of the 2008 Kart Race Yearbook. Information printed in italics relates to regulations that will come into force in the future should the member Clubs agree. Regulations which contain numerals in brackets e.g. (K 140) are references taken from the MSA Motor Sports Yearbook. Changes are shaded. Definitions The ABkC Kart Racing Regulations, were until 1997 published separately and were known as the Green Book. These regulations are now incorporated into the 2008 MSA Kart Race Handbook, known as the Gold Book, published by the MSA on behalf of them and all the Kart Associations. The MSA British Motor Sports Yearbook, is hereafter called the Blue Book The CIK Yearbook of Karting Sport, is hereafter called the Yellow Book and is available on the CIK website ABkC National Championships will be organised by the Super One, BRDC Stars of Tomorrow and NKF for Super Four classes or other series as may be decided by the Steering Group for those existing popular classes and selected CIK classes as indicated under the Class Regulations. ABkC single event National Championships may be organised for these and for the other less popular existing classes and any newer classes as they become established. Only members of ABkC Clubs can enter the ABkC championships or qualifiers, these are: S1 Series Formula KF2 Formula 100 National/K100 Formula TKM Extreme Rotax Senior Max Rotax Senior Max/177 Formula Junior TKM Formula Junior TKM Extreme Rotax Junior Max Rotax MiniMax Formula Cadet (Comer and Honda and/or WTP) TBA Honda Junior and Senior; World Formula 57

60 Super 4 Series All gearbox classes 2008 allocation Super ICC/KZ1 BRDC Stars of Tomorrow Junior Gearbox ICC UK/KZ2 UK NKF 250 National NKF ABkC Open 0 Plate Championships ABkC Internations Challenge (with exception of entries from Eire team) Senior officers of the Association Chairman Russell Anderson chairman@abkc.org.uk Secretary Graham Smith, Stoneycroft, Godsons Lane, Napton, Southam CV47 8LX. & Fax: info@abkc.org.uk Treasurer Ian Rennison, c/o Clay Pigeon Raceway, The ABkC website can be found at Member Clubs (as at ) are: Bayford Meadow KC Beccles & District KC BRDC Stars of Tomorrow Buckmore Park KC Camberley KC Chasewater KC Cheshire Kart Club Clay Pigeon KC Cumbria KC Dunkeswell KC Forest Edge KC Guernsey Kart & Motor Club Grampian KC Hoddesdon KC Hunts KC Isle of Man Kent Kart Racing Club Lincolnshire KC Llandow KC Manchester & Buxton KC North of Scotland KC RAF MSA Rissington KC Sandown Park KC Shenington KC South Yorks KC Trent Valley KC Ulster KC Warden Law KC West of Scotland KC Whilton Mill KC B. General Regulations for all ABkC classes The general regulations relating to the organisation of a kart race meeting, as specified in the MSA Blue Book, govern a meeting organised to the classes specified in this publication. B.1 Fuel. B.1.1 Fuel for Club meetings must conform to the MSA specification defined as - Fuel must be Unleaded petrol as defined in The Terminology Section of the MSA Yearbook. Notes: The use of power boosting or octane boosting additives by competitors in any fuel is prohibited. Some power/octane boosters are carcinogenic. B.1.2 When control fuel is specified the fuel for the ABkC Championships will be obtained through the appointed supplier and will conform to the current MSA Regulations. Any driver found to be using fuel that does not conform to the blueprint provided by the appointed supplier may be excluded from the ABkC Championship. Unless a waiver is given, all ABkC non-gearbox Championships will use control fuel to ensure that all competitors are racing at an equal level in relation to fuel. All systems of injection and/or spraying of products other than fuel are forbidden. B.1.3 If a control fuel is specified for use in an event or championship series this must be specified in the Regulations for the event. B.1.4 Fuel Tanks CIK classes. The tank capacity must be 8 litre minimum. B.2 The definition of a number plate is any suitable backing material of the appropriate colour if attached to a solid surface such as a sidepod. B.3.1 ABkC member clubs will acknowledge the 1 to 15 number plates recognising the top fifteen finishers in an ABkC Championship, including the Super One Series ABkC Direct Drive Championship. ABkC member clubs will acknowledge the 1 to 9 number plates recognising the top nine finishers in the ABkC Honda and WF classes and the Super Four Series Gearbox Championship 58

61 and in the 210 Challenge. Winners of the ABkC Open Championships and the winner of the 210 Challenge O Plate competition may use the "0" plate which will be acknowledged by member clubs. Scottish, Welsh and Northern Ireland championship winners number plates (e.g. S & C) in ABkC recognised classes will be recognised by ABkC clubs, so long as the class is raced fully to the ABkC regulations. When Formula Junior TKM and Intermediate race together, Formula Junior TKM seeded numbers take precedence. When Super 1 and MSA Cadet seeded drivers race together the Super 1 seeds will precede their number with S. B.3.2 The recognition of the above numbers will take place immediately the championship results are no longer provisional. B.3.3 The seeded numbers gained from the 2007 Super One Series in Formula A, ICA and JICA are eligible for use in KF1, KF2 and KF3 respectively. B.4 Driver Eligibility. B.4.1 Only drivers who are members of ABkC clubs will be eligible to enter for an ABkC championship. B.4.2 Where the Super One Series or ABkC member club runs an MSA British Championship this class is open to any driver conforming to the MSA regulations for that Championship. B.4.3 It is a condition of the Club s acceptance of a driver s race entry that they, the driver, agrees to conform to the regulations contained within the current ABkC regulations contained within this publication and subsequent amendments. B.5 Performance Monitoring Devices. ABkC do not see the use of such devices causing problems, where allowed for a specific class, provided that the track side components of these devices are set up in an area designated by the Club and satisfactory to the Clerk of Course. B.5.1 Data Logging equipment is recognised as a device that will allow the down loading of information from the kart. A revolution counter that monitors maximum revs is not considered a Data Logging Device. B.6 Scrutineering. B.6.1 The host club or championship organiser will provide each driver with a Scrutineering Document. B.6.2 The document will contain space for the numbers of the engines and chassis being used as appropriate for the competition. B.6.3 The Scrutineering Document must be completed and signed by the driver prior to the commencement of the event. It is the responsibility of the driver to comply with the above but if the driver is under 18 years of age the signature on the Scrutineering Document must be that of the drivers parent or guardian. B.6.4 At the completion of any part of the event, if the equipment being used, including the chassis and engine numbers, does not conform in all respects to the data on the Scrutineering Document the driver will be excluded from the meeting. B.6.5 All equipment recorded on the Scrutineering Card must conform to the class technical regulations. B.7 Weight. B.7.1 Scales to MSA Yearbook (K 30) (A(a) 34 does not apply.) B.7.2 It is the responsibility of the driver to ensure that their equipment conforms to the class weight limits using the scales of the day. B.8 Class sub-division. B.8.1 A class may be sub divided to suit local drivers, the suggested sub divisions are indicated here under the heading CLUBS. B.8.2 Clubs may further divide the race classes into experienced and inexperienced drivers using suitable names that indicate this division to drivers when entering an event. 59

62 B.9.1 Karts capable of self starting, either by means of a starter motor being fitted to the engine or by attaching a starter motor, or by means of a pull cord must conform to the following regulations:- B.9.2 All karts fitted with a self-starting system must also be fitted with an operational on/off ignition switch clearly marked with the relevant positions. B.9.3 The driver of a self-start kart must be in the seat when the engine is started or when it is running on the dummy grid. It is recommended that the brake is applied during the starting procedure. B.9.4 Engines that may be self-started must not be started on the dummy grid until the signal is given by the grid marshal. They must be given the opportunity to start before the rest of the karts are given the signal to move off from the dummy grid. B.9.5 It is forbidden to lift the rear of the kart with the engine running with the purpose of revving the engine further and spinning the rear axle. It is further expressly forbidden to carry this out with the purpose of warming the rear tyres. B.9.6 All karts MUST leave the grid in a safe manner at slow speed so as not to endanger pushers. B.9.7 Once a practice or race session has started, karts may only be worked on in a place of safety. At no time can work be carried out on a kart while its engine is running (e.g. replacing a chain, exhaust etc.). Any engine fitted with an ignition switch must have this switched off. B.9.8 Race stoppages will be in accordance with MSA Yearbook Section (K 72-75) B.10 Tyre bead retention pegs are permitted in all classes. B.11 Acoustic engine covers are permitted in all classes. B.12 Sprocket protectors are permitted in all classes. B.13 ABkC clubs must use the sound level meter at a height of 3.6m unless a waiver has been given (reference MSA Yearbook K 148) B.14 Noise Safety: The following regulations are highly recommended and may become mandatory in subsequent years. Refer to MSA Yearbook (C(b) 23) It should be noted that the HSE limits (The Control of Noise at Work Regulations 2005) for exposure to noise are summarised as follows and are available on : The lower exposure action values are a) a daily or weekly personal noise exposure of 80dBA, b) a peak spl of 135 dbc. The upper exposure action values are a) a daily or weekly personal noise exposure of 85dBA, b) a peak spl of 137 dbc. The exposure limit values are a) a daily or weekly personal noise exposure of 87dBA, b) a peak spl of 140 dbc. An employer who carries out work which is liable to expose any employee to noise at or above a lower exposure action value shall make a suitable and sufficient assessment of the risk from that noise to the health and safety of those employees, and the risk assessment shall identify the measures which need to be taken to meet the requirements of these regulations etc. B.14.1 Officials: Every official and helper who is located close to the track should be issued with ear protection. This can be either earmuff style or disposable foam plugs style. B.14.2 Competitors: it is highly recommended that every competitor wear ear plugs at all times when driving a kart. B.14.3 Dummy Grid and after race collecting area: It is recommended that all personnel in the pit area use ear protection. B.14.4 Dummy Grid, collecting area and Spectator Areas close to the track: Signs are recommended advising that ear protection is recommended, and advising a source to purchase such protection. B.14.5 Ear plugs: Clubs should have supplies of disposable ear plugs for officials and for sale to spectators and drivers. 60

63 B.15 Fire Extinguishers: All drivers must have present at race meetings a fire extinguisher to BSEN3 or EN3 standard with a minimum 55B rating. Environmental scrutineers will carry out spot checks in the paddock. (Note: Type B means for use with flammable liquids, and the 55 refers to the capacity. The actual extinguishant is not specified, but Halon is no longer legal in the UK). Fire extinguishers must be kept in the competitors pit space a t all times. B.16 Deleted B.17 Front fairings of the wedge or shovel nose type are ineligible in all classes except gearbox when in long circuit trim with effect from , see MSA Yearbook Section K. B.18 A club meeting is defined as a Clubman or National B status event or race which is not a round of a national multi-venue championship, an ABkC championship or any National A meeting, but may be part of the organising club s own single venue club championship. B.19 Any competitor found to be using chemical treatment on tyres in contravention of MSA Yearbook (K 134), or using fuel or lubricants in contravention of MSA or championship regulations will be banned from racing at all ABkC clubs and all ABkC championships for a minimum period of one year. Drivers may appeal any decision to the ABkC Steering Group. B.20 Pitting for repairs is permitted and outside help is allowed in designated pit or repair areas (See MSA Yearbook G 66). B.21 The practice of lifting karts on the dummy grid or start line while the engine is running is prohibited. C. Direct Drive Class General Regulations C.1 A clutch is permitted in any of the 100cc classes. C.1.1 The minimum permitted wall thickness of the rear axle is 1.9mm C.2 Any club may organise a "175" weight category for any senior 100cc class, (e.g.100 National/175) but must conform to 175kg minimum weight limit with driver, on the completion of any part of the event. The driver must, in full racing equipment, weigh a minimum of 80kgs at the completion of any part of the event. In Formula Rotax Senior Max/177 the minimum weight limit including driver is 177kg and the driver must, in full racing equipment, weigh a minimum of 85kg at all times. The number plate should have a black or white line of 2.5cm width across the base of the plate in the 175/177 categories. C.3 Rear view mirrors are forbidden. C.4 The ABkC encourages the use of water cooled engines. The ABkC recommends the use of acoustic engine covers or other measures such as inserts between head and cylinder fins to reduce noise in air cooled classes. C.5 It is recommended that clubs incorporate into their supplementary regulations that only one set of slicks be used during a race meeting. D. Gearbox Class General Regulations D.1 It is important to note that at club level all 250cc monocylinder karts may race together for either one or more sets of trophies at the club s discretion, and similarly all 125cc classes may race together for either one or more sets of trophies. If necessary all gearbox classes may race at the same time. D.2 No more than one set of dry tyres may be used in an ABkC gearbox championship meeting for official practice and racing plus one spare front and one spare rear if the original is 61

64 damaged as specified in SRs. In the event of a tyre being punctured or damaged during racing an extra replacement tyre may be permitted at the discretion of the Chief Scrutineer and Clerk of Course. D.3 In Formula 210 no form of digital re-programmable ignition is permitted, either by reprogramming the ignition system from an external programmer, or by means of add on circuitry. Only a simple add on resistor/capacitor passive circuit is permitted in order to introduce a fixed delay curve to the ignition system. No variation of this curve is permissible whilst the kart is in motion. No active devices such as transistors or integrated circuits are permitted. Devices may be required to be laboratory tested to determine compliance. D.4 Drive by wire and traction control devices are expressly forbidden. D.5 Gear change in Formula 210, Formula 125 Open, Formula 125 ICC (UK)/KZ2, Formula Super ICC/KZ1, and Formula 250 National classes must be mechanical with no electrical, electronic, hydraulic or pneumatic operation or assistance. No form of ignition control to aid gear changing is permitted, for example continuous traction system (cts). D.6 Bodywork Definitions related to karts used on long and short circuits. D.6.1 Long circuit bodywork trim is recognised as including anything in short circuit bodywork trim plus any nose type conforming to kart general regulations, fully enveloping panels, and wings either full width or part width. D.6.2 Short circuit bodywork trim is recognised as including a front fairing plus side-protection bars or side-pods to prevent wheel interlocking as per general kart regulations and optionally either a Nassau panel or bubble. Lateral bodywork and front fairings must never cut the plane through the top of the front and rear tyres. Rear vertical wing ends are permitted but any form of wing or winglets or fully enveloping body panels are not permitted. D.6.3 No part of the kart other than the bolts or clamps fixing the floor tray, the engine, the seat and seat stays, or the brake discs, the front kingpin bolts, the sprocket, the wheels and the tyres, may protrude below the bottom of the main longitudinal chassis rails. The floor tray may be clamped direct to the lower edge of the main longitudinal chassis rails. D.6.4 The minimum permitted wall thickness of the rear axle is 1.9mm D.7 Kevlar and carbon fibre are not permitted in Formula 125 ICC (UK)/KZ2, Super ICC/KZ1, Formula 210 or Formula 250 National except for seats, silencers, Nassau panels and instrument panels, Carbon fibre or Kevlar bodywork is specifically permitted in Formula 125 Open and Formula 250E. D.8 Homologation and Registration of Engines for ABkC Championships and Club events. D.8.1 ABkC will only allow the registration of new engines into the Formula 125 Open and Formula 250 National classes on a three year basis, the next permitted update of engines in these classes will be for the 2010 season. Engines being put forward for registration should be presented for inspection to the MSA or their designated Association by was the start of a three year period. Engines homologated by the CIK do not need to be separately registered by the MSA unless specified in class regulations. D.8.2 In Formula 125 Open engines must be registered by the CIK for use in Formula C, ICC/KZ2 or Super ICC/KZ1. Any change to this regulation is not anticipated until the 2009 season. D.9 Re-programmable ignitions Formula 250 National: The ignition system type is open but the electronic unit box and the coil must receive only one feeding energy source of the rotor/stator or of a battery and one crankshaft pick-up signal in order to set the ignition signal. The advance and cartography may under no circumstances be modifiable from the driving seat under normal racing conditions. 62

65 E. Lap Scoring and Points Scheme Recommendations After a survey of the procedures used by member clubs when lap scoring and calculating the grids for the finals during a meeting the following suggestions are made to enable the drivers to understand the system. E.1 System (A) The first placed driver in any heat will be given 0 points, 2nd place 2 points, 3rd place 3 points and so on until the last placed driver, or System (B), the first placed driver will be given the number of points equal to the maximum number on the grid plus two, the second placed driver the maximum less two, the third the maximum less three and so on. E.2 (A) A driver who fails to start a race will take 1 point more than the number of drivers that started the race, or (B) I point less than the maximum number of starters. E.2.1 If the grid is part of a meeting when drivers may not be racing in every grid used for that class, then a non finishing driver will take (A) 1 point more or (B) 1 points less, than the largest starting grid used in that class. E.2.2 Drivers who fail to finish may be given points according to their positions on the lap charts. E.3 A driver who is excluded from a race will take (A) 1 point more, or (B) 1 point less, than the number of drivers that started a race, calculated in exactly the way as in E 2.1 The C of C may decide to increase this penalty under certain circumstances (MSA Yearbook Section C(d) 3). E.4 Lap scoring, when transponders are not being used, should take the form of at least three people independently observing the drivers, this is important should a dispute arise in order that a majority decision may be made. The practice of one person calling the drivers is not encouraged! E.5 In order to enable the judicial procedures to proceed with the minimum of complication the lap scoring team are advised to include the following pieces of information on their lap scoring sheets: a) Race start and finish times. b) Number of starters and number of finishers. c) Any other observations pertinent to the result of the race. E.6 In accordance with MSA Yearbook (B 35) the Chief Lap Scorer will be a judge of fact in respect of laps completed and finishing order. The Chief Lap Scorer must forward the race finishing order to the results team and the Clerk of the Course. F. Transponder Lap Scoring F.1 The ABkC and MSA has introduced transponder lap scoring. The nominated system for all ABkC clubs is the AMB TranX 160 system introduced from Every driver will be expected to own a transponder by that time, although clubs may hold back up stocks for hire. Clubs not able to comply may apply to the ABkC for a waiver. F.2 The transponder must be fitted in an approximately upright position (ie with the R clip to the top) on the back of the seat fitted at a height from the ground at 25cm ±5cm measured to any point of the transponder. F.2.1 Deleted. F.2.2 Deleted. F.2.3 Transponders must be mounted in accordance with the manufacturer s recommendations. F.2.4 If transponder lap scoring is in use then at least one lap scorer must manually lap score each race per K 47. Transponder decoders must be a certified and approved type. F.2.5 Where timing by transponder is permitted kart timekeepers must be MSA licensed. 63

66 G. Tyre Testing Guidelines G.1 A photo-ionization detector (PID) with a calibration certificate for isobutylene at 100ppm issued in the preceding 12 months may be used for testing for chemical treatment of tyres. G.2 A reading greater than 3ppm on a PID as described in G.1 with the sampling probe within 5mm of any part of the tyre or tread, where the reading is 50% greater than the average readings found on tyres from other competitors in the race will be deemed evidence of chemical treatment as per MSA Yearbook (K 134). G.3 If chemical treatment of tyres is established before the race, using the above technique or any other, the competitor will not be allowed to race as chemically treated tyres may constitute a safety risk and contravenes MSA Yearbook (K 134). If the event regulations allow then the competitor may at the discretion of the chief scrutineer be given the opportunity to change tyre(s). No additional time will be allowed for this. 64

67 APPENDIX 5 CIK Yearbook Extracts and MSA Supplementary Information Due to the CIK Yearbook publication date occurring after the print date for this publication, users are reminded to refer to the definitive current regulations as published by the CIK-FIA ENGINE General By engine is meant the propelling unit of the vehicle in running order, including a cylinder block, sump and possible gearbox, ignition system, carburettor(s) and exhaust silencer. All systems of injection are forbidden. The spraying of products other than fuel is forbidden. The engine shall not comprise a compressor or any supercharging system. For Formula Super A, FA, Superkart, ICA, KZ2, KZ1 and ICE, a cooling system (only for the cylinder and cylinder head in 100 cc) by air or liquid is authorised. Only water is authorised for liquid cooling. KF4, KF3, KF2, KF1, KZ2, KZ1, FA, ICA and ICA-J engines must be described in the Manufacturer s catalogue and be the subject of a descriptive form called Homologation Form from the model established by the CIK-FIA. This Homologation Form shall be stamped and signed by the ASN and the CIK-FIA (see the Homologation Regulations). World Formula, Superkart and ICE engines must be approved by the CIK-FIA with the Manufacturer s official spare parts catalogue (see the Approval Regulations) Identification. It must be possible to identify the homologated equipment by the technical descriptions (drawings, dimensions, etc.) on the Homologation Form. If it is referred to the orientation of the chassis, bodywork, engine, etc., this reference shall be based on the driving position of the Driver in the forward direction. It must be possible to identify a homologated engine or its parts by the technical descriptions (photos, drawings, dimensions, etc.) on the Homologation Form and taking into account the modifications allowed and the prescribed limits in accordance with Articles 4 to Controls. For the control, the following tolerances are allowed: Connecting rod centre line: ± 0.2 mm Piston stroke: - engine assembled: ±0.2 mm crankshaft alone: ± 0.1 mm Ignition, engine: ±2 Homologated gearbox: Value obtained after 3 engine rotations: ±3 Exhausts of all 125cc engines : ± 1 mm Other parts : Dimensions: < 25 mm mm > 60 mm Machined parts: ±0.5 mm ±0.8 mm ±1.5 mm Raw or welded parts: ±1.0 mm ±1.5 mm ±3.0 mm All the measurements are taken using the metric system: cm, mm, kg, (degree), etc Without tolerance (at all times and whatever the conditions may be): Cubic capacities; Diameter of the carburettor venturi; Noise limit; Weight measurement; Combustion chamber volume; Squish; Any minimum and maximum value Plastic bodywork. Tolerance of ±5% on the homologated dimensions. 65

68 Registration shall be on the official CIK-FIA Registration Sheet. Article 4 General Prescriptions for Group 1 Karts. 1) Chassis Group 1 chassis must be produced by Manufacturers who have homologated equipment in Group 2 (except in Superkart). 2) Engine In Formula A and Superkart: The original parts of the homologated or approved engine must always be in conformity and identifiable except the crankshaft, the connecting rod, the piston and the sleeve which may be freely changed or modified (subject to their complying with the Technical Regulations). Modifications allowed: All modifications to the homologated engines are allowed except: a) Inside the engine Stroke Bore (outside the maximum limits) Connecting Rod centerline the connecting rod material must remain magnetic. b) Outside the engine Number of carburettors and diameter of choke, External characteristics of the fitted engine, except for machining necessary for the application of bar code stickers. The fixations of the carburettor, ignition, exhaust, or engine may be modified, provided that their homologated position is not modified. Article 5 General Prescriptions for Group 2 Karts 1) Chassis All Group 2 frames (KF4, KF3, KF2, KZ2, KZ1, ICA, ICA-J, ICE, ICC-Sudam and ICC-Junior-Sudam must be homologated. They shall be described in the Manufacturer s catalogue and on a descriptive form called Homologation Form to be stamped by the ASN, according to the model drawn up by the CIK-FIA. Frames will be homologated every three years for a six year validity period. Homologation extensions shall be authorised according to the Homologation Regulations. 2) Engine KZ1, KZ2, ICA, ICA-J, ICC-Sudam and ICC-Sudam-Junior Only reed-valve intakes are authorised in ICA, KZ2 and KZ1. Only piston-port type intakes are authorised in ICA-J. The original parts of the homologated engine must always comply with and be similar to the photographs, drawings and physical heights described on the Homologation Form. Modifications allowed: All modifications to the homologated engine are allowed except: a) Inside the engine: stroke, bore (outside the maximum limits), connecting rod centreline, number of transfer ducts and inlet ports in the cylinder and crankcase, 66

69 number of exhaust ports and ducts. The creation of new exhaust ducts or ports is forbidden. Restrictions according to the specific regulations. b) Outside the engine: number of carburettors and diameter of choke, external characteristics of the fitted engine, except for machining necessary for the application of bar code stickers (possible modification of the external appearance of the engine must be applied for as a homologation extension). Modification of the external appearance of the engine does not include the fixations of the carburettor, of the ignition, of the exhaust, of the clutch or of the engine itself, provided that their homologated position is not modified. Article 12 Specific Regulations for KZ2 and KZ1 * Power unit: it must not be possible to dissociate the engine from the gearbox. Engine case divided into only 2 parts (vertical or horizontal). * Water cooled single-cylinder engine with reed-valve intake, one circuit only, homologated by the CIK-FIA. * Maximum cylinder cubic capacity: 125 cc. * Reed-valve box (dimensions and drawing) according to the Homologation Form. Reed-valve box cover: free. * Carburettor made of aluminium, with a venturi type diffuser with a maximum diameter of 30 mm round. For the CIK-FIA Championships, Cups and Trophies, the carburettor must be the Dell Orto VHSH 30 designated following an invitation to tender. The carburettor must remain strictly original. The only settings allowed may be made to: the slide, the needle, the floaters, the float chamber, the needle shaft (spray), the jets and the needle kit, subject to all the interchanged parts being of Dell Orto origine. The incorporated petrol filter and the plate (part No. 28 on the technical drawing No. 7) may be removed; if they are kept, they must be original. * Gearbox: homologated by the CIK-FIA (including the primary torque). Minimum 3 and maximum 6 ratios. Check of the ratios using a graduated disc with a minimum diameter of 200 mm or a digital coder; the degree decimals given on the Homologation Form must be mentioned in tenths of degrees and not in minutes. For the homologation of the gearbox, the Manufacturer(s) and the model and type must appear on the Homologation Form. * Mechanical gearbox control without a servo system. Any system of ignition cutting is forbidden. * Total exhaust opening angle of 199 maximum, irrespective of the value indicated on the homologation form (to be read with a graduated circle of a minimum diameter of 200 mm or with a digital device). * Volume of the combustion chamber: 11 cc minimum. The volume of the chamber is measured with a class A laboratory burette graduated in tenths of cubic centimetres. The mixture used for this check will be composed of unleaded petrol and 2-stroke oil, mixed in a ratio of 1 to 1. The chamber will be filled in accordance with the method described in Appendix No. 1a. * Spark plug: the make is free. The body of the spark plug (electrodes not included), tightened on the cylinder head, must not extend beyond the upper part of the dome of the combustion chamber. Dimensions - length: 18.5 mm; pitch: M 14 x * It is allowed to add a mass to the ignition rotor; it shall be fixed by at least 2 screws, without any modification to the homologated rotor. * Exhaust: homologated (see Supplement to the Homologation Form) and the magnetic steel sheet metal thickness of which must be 0.75 mm minimum. 67

70 CIK METHOD FOR MEASURING THE VOLUME OF THE COMBUSTION CHAMBER See CIK Technical Regulations App 1 For clarification note that the insert is normally used without the standard plug washer, if additional washers or sensors are used under the plug these should only be fitted under the insert if exposed thread dimension is measured at less than 18.5mm and then only to correct to the same dimension as on the removed plug. For the Junior Gearbox Honda engine it is permitted to fit the original sealing spark plug washer on the insert. SPARK PLUG INSERT: MSA BODYWORK REGULATIONS GUIDANCE NOTES Definitions: References to K refer to the MSA Competitors Yearbook. 08 homologation CIK bodywork is the bodywork homologated for the period 2003 to 2008 (sometimes referred to as "2003 CIK homologated bodywork"). There is also the latest varient, often referred to as Crash-tested CIK Bodywork, as from 2005 that is valid until When CIK classes are referenced, this means KF1, KF2 and KF3. GUIDANCE FOR THE USE OF HOMOLOGATED CRASH-TESTED CIK BODYWORK Clarification of wet conditions when using homologated crash-tested CIK sidepods. When wet weather tyres are fitted, they may be inside the sidepods except for variants with ends that are not of the closed-off variety (please refer to pictures below). Illegal Legal Legal 68

71 APPENDIX 6 Kart Clubs Recognised by the MSA for the Organisation of Kart Competitions (as at 1/11/07). For an up to date list please check the MSA website M R C I Ltd (Karting). Club Sec: F C J Weir, 124 Mountstewart Road, Carrowdore, Newtownards, Co Down, BT22 2ES (h): (w): Comp Sec: F C J Weir, 124 Mountstewart Road, Carrowdore, Newtownards, Co Down, BT22 2ES (h): (w): Chief Marshal: Mr P Ritchie, 3 The Liberty, Portaferry, Newtownards, Co Down, BT22 1LU B A R C (Kart Section). Club Sec: Mr D I Carter, Thruxton Circuit, Andover, Hants, SP11 8PN (h): (w): Comp Sec: Mr D Wells, Thruxton Circuit, Andover, Hants, SP11 8PN (w): Chief Marshal: Mr T Jackson, BARC LTD, Thruxton Circuit, Andover, Hants, SP11 8PN Bayford Meadows Kart Club. Club Sec: J Webster, Bayford Meadows Kart Club Ltd, Symmonds Drive, Eurolink Ind. Est., Sittingbourne, Kent, ME10 3RY (w): Comp Sec: J Webster, Bayford Meadows Kart Club Ltd, Symmonds Drive, Eurolink Ind. Est, Sittingbourne, Kent, ME10 3RY (w): Buckmore Park Kart Club. Club Sec: Mr C Pullman, Buckmore Park Kart Circuit, Maidstone Road, Chatham, Kent, ME5 9QG (h): (w): Comp Sec: Mrs S Rose, Buckmore Park Kart Circuit, Maidstone Road, Chatham, Kent, ME5 9QG (h): (w): Chief Marshal: A Eldridge, Buckmore Park Kart Circuit, Maidstone Road, Chatham, Kent, ME5 9QG (h): Club 125. Club 125 Club Sec: S Hart, Club 125 Racing Ltd, Symmonds Drive, Eurolink Ind Estate, Sittingbourne, Kent, ME10 3RY (h): (w): Comp Sec: S Hart, Club 125 Racing Ltd, Symmonds Drive, Eurolink Ind Estate, Sittingbourne, Kent, ME10 3RY (h): (w): Chief Marshal: Mr B Scott, C/o Bayford Meadows Kart Circuit, Symmonds Drive, Eurolink Ind Estate, Sittingbourne, Kent, ME10 3RY (w): Dunkeswell Kart Racing Club Ltd. Club Sec: Mr M Rundle, 14 Avondale Road, Exmouth, Devon, EX8 2NQ (h): (w): Comp Sec: Mrs J Fugett, 27 Overlands, North Curry, Taunton, Somerset, TA3 6JL (w): Endurance Drivers' Club. Club Sec: Mr L Trueman, 4 Sandlewood Close, Calmore, Southampton, Hants, SO40 2SU (h): Comp Sec: S Bowyer, 4 Sandlewood Close, Calmore, Southampton, Hants, SO40 2SU (h): Long Circuit Racing Kart Club. Club Sec: T Bateman, 7 Burns Close, Kidsgrove, Stoke-on-Trent, Staffs, ST7 4JD (h): (w): Comp Sec: T Bateman, 7 Burns Close, Kidsgrove, Stoke-on-Trent, Staffs, ST7 4JD (h): (w): Rissington Kart Club. Club Sec: Mrs D Wynell-Mayow, 20 Springwater Close, Northway, Tewksbury, Gloucestershire, GL20 8SE (h): (w): Comp Sec: J K Dredge, 4 Goodwood Close, Burghfield Common, Reading, RG7 3EZ (h):

72 Rochester Motor Club (Kart Section). Club Sec: Mr R D McCabe, 5 Old Loose Close, Loose, Maidstone, Kent, ME15 0BJ (h): (w): Comp Sec: Mr R Sheffield, 103 Tudor Avenue, Worcester Park, Surrey, KT4 8TU (h): (w): (m) South Yorkshire Kart Club. Club Sec: Mrs D Baines, 20 Crossgate, Mexborough, Rotherham, S.Yorkshire, S64 0LN (h): (w): Comp Sec: Mrs J Hambleton, The Croft, Redbourne Road, Hibaldstow, N. Lincolnshire, DN20 9EE (h): (w): Chief Marshal: C Charlesworth, 5 Sankey Square, Goldthorpe, Rotherham, S.Yorkshire, S63 9AJ Trent Valley Kart Club. Club Sec: Mr N Edwards, 4 Grosvenor Close, Retford, Notts, DN22 7HP (h): (w): Comp Sec: J Wilson, 11 Booth Way, Little Paxton, St Neots, Cambs, PE19 6JU (h): Chief Marshal: R Wright Two Counties Kart Club. Club Sec: B Taylor, 22 Old Castle Road, Rodwell, Weymouth, Dorset (h): Comp Sec: J Shone, 125 Lanehouse Rocks Road, Weymouth, Dorset, DT4 9HY (h): Ulster Kart Club Ltd. Comp Sec: Mr P Rutherdale, 37 Donaghcloney Road, Dromore, Co Down, BT25 1JR (h): Chief Marshal: M P Maguire, 3 Lurgan Road, Crumlin, Co Antrim, BT29 4QA (h): (w): Whilton Mill Kart Club. Club Sec: R Chapman, 23 Foxglove Close, Buckingham, Bucks, MK18 1FU (h): Comp Sec: R Chapman, 23 Foxglove Close, Buckingham, Bucks, MK18 1FU (h): Chief Marshal: C Wells, 22 Prestwold Way, Northampton, NN3 8JH 70

73 APPENDIX 7 Recognised Groups Composed of Individual Clubs Not Necessarily Recognised for the Promotion of Motor Competitions Association of British Kart Clubs (The ABkC Steering Group is recognised by the MSA as the Kart Regional Committee) Secretary: G M Smith, Stoneycroft, Godsons Lane, Napton, Southam, Warwickshire CV47 8LX. (h) & Fax. secretary@abkc.org.uk Member Clubs (as at ) are: Bayford Meadow KC Beccles & District KC BRDC Stars of Tomorrow Buckmore Park KC Camberley KC Chasewater KC Cheshire Kart Club Clay Pigeon KC Cumbria KC Dunkeswell KC Forest Edge KC Guernsey Kart & Motor Club Grampian KC Hoddesdon KC Hunts KC Isle of Man Kent Kart Racing Club Lincolnshire KC Llandow KC Manchester & Buxton KC North of Scotland KC RAF MSA Rissington KC Sandown Park KC Shenington KC South Yorks KC Trent Valley KC Ulster KC Warden Law KC West of Scotland KC Whilton Mill KC British Superkart Association Secretary: Mr I Rushforth, 6 Mansfield Avenue, Quorn, Loughborough LE12 8BD Northern Karting Federation Secretary: Mrs Anne Laws, 2 Matfen Place, Fenham, Newcastle Upon Tyne, NE4 9DN. (h): Member Clubs (as at ) are: Cumbria KC Lincolnshire KC Manchester & Buxton KC Rissington KC Shenington KC Warden Law KC West of Scotland KC National Kart Racing Association Secretary: Mrs J Shone, 125 Lane House Rocks Road, Weymouth, Dorset DT4 9HY. (h) Member Clubs (as at ) are: Camberley KC Chasewater KC Clay Pigeon KC - Dunkeswell KC East of Scotland KC - Forest Edge KC Grampian KC Hoddesdon KC - Kent KC Kingdom KC Lincolnshire KC Llandow KC South Yorkshire KC Trent Valley KC Two Counties KC Warden Law KC. OTHER APPROVED ORGANISATIONS COMPOSED OF ASSOCIATIONS OF CLUBS OR BODIES RECOGNISED AS RESPONSIBLE ORGANISATIONS IN THE SPHERE OF MOTOR SPORT Kart Officials Club R Sheffield, 103 Tudor Avenue, Worcester Park, Surrey KT4 8TU

74 APPENDIX 8 MSA Licensed Kart Race Tracks P Aghadowey on unclassified road, 6 miles south of Coleraine. T Barton Stacey Near Andover, Hampshire P Bayford Meadow Sittingbourne, Kent. 1 mile east of Sittingbourne. P Bishopscourt 6 miles from Downpatrick, Northern Ireland. P Blackbushe (Surrey) off A30 at Blackbushe Airport and follow signs towards Sunday Market, OS 175/ P Boyndie (Banffshire) 3 miles west of Banff. OS 30/ P Buckmore Park Chatham, Kent. Between Junction 3 on M2 & Junction 6 on M20. P Clay Pigeon (Dorset) Midway Dorchester-Yeovil on A37. P Crail Raceway Fife. P Darley Moor (Derbyshire) 2 miles S of Ashbourne on A515. P Daytona International Raceway H4 Dansteed Way, Milton Keynes, Buckinghamshire P Ellough (Suffolk) 2 miles from Beccles. OS 156/ P Fulbeck (Lincs) 8 miles from Newark, off A17 at Brant Broughton Cross Road. OS 121/ P Glan y Gors Park (Conwy) 10 miles from Betws y Coed and 10 miles from Corwen on A5. P Golspie (Sutherland) Little Ferry, Golspie, Sutherland 82/190030, off A9 Inverness to Thurso. P Hooton Park Circuit (Wirral) Ellesmere Port, 2 miles off Junction 6 M53. T Jurby Aerodrome Kart Circuit Jurby, Isle of Man. 5 miles North East of Ramsey on A13. P Kimbolton (Hunts) 10 miles west-south-west of Huntingdon. OS 153/ P Larkhall Hamilton, Strathclyde. P Llandow (S Glamorgan) 9 miles from Cardiff on B4270. P Little Rissington (Gloucs) RAF Station south of Stow on the Wold. OS 163/ P Lydd Raceway (Kent) Near Lydd. P Mansell Raceway (Dunkeswell, Devon) 5 miles from Honiton / P Nutts Corner (N. Ireland) 4 miles from Crumlin. P P.F. International (Lincs) Stragglethorpe, near Stubton. 7 miles from Newark off A17/10 miles from Grantham off A1. P Rowrah (Cumberland) 4 miles from Frizington. OS 82/ P Rye House (Herts) Rye Road, Hoddesdon. OS 166/ P Shenington (Oxon) 8 miles from Banbury, off A422 Banbury-Stratford Road. OS 151/ T Sorel Point (Jersey) St John, Jersey. P St. Sampsons Guernsey, Channel Islands. P Three Sisters (Lancs) Bryn Road, Ashton-in-Makerfield. P Warden Law miles off A690, near Houghton le Spring, Sunderland. P Whilton Mill 5 miles east of Daventry on minor road off A5. P Wombwell (Yorks) Dorothy Hyman Stadium, Wombwell, 6 miles from Barnsley. OS 111/ KEY: P = Permanent Track. T = Temporary Track. 72

75 APPENDIX 9 MSA/ARKS Club Examiners BAYFORD MEADOWS KC Ian Ward Bayford Meadows KC Symmonds Drive Eurolink Ind Estate Sittingbourne, Kent ME10 3RY (M) CAMBERLEY KC Ian M Johnson 96 Minley Road, Cove Farnborough, Hants GU14 9QW (H) CHESHIRE KC Bob Wilson Cheshire Kart Club 69 Delamere Park Way West Delamere Park Cuddington, Northwich Cheshire CW8 2UL COLERAINE & DMC Evan Freeman 15 Cashiel Road Macosquin, Coleraine Co. Londonderry Northern Ireland BT51 4PW CUMBRIA KRC Malcolm Fell 50 Newton Road Dalton in Furness, Cumbria LA15 8NT (H) DUNKESWELL KC Darren Priestman 8 Windmill Road Brixham Devon TQ5 9SJ EAST OF SCOTLAND KC D Graham Lowe 25a Campfield Road Broughty Ferry, Dundee DD5 2NG (H) FOREST EDGE KC Peter A Bryceson Clapgate Cottage Newbury Road Whitchurch, Hants RG28 7PW (H) Peter Thomas 12 Saxby Close, Barnham West Sussex PO22 0GN GRAMPIAN KC Scott Rennie Elgosar, Tupperty Ellon, Aberdenshire B41 8LX George Stephen 31 Seafield Street Portlnockie Buckie, Moray AB56 4LX GUERNSEY K & MC Claude Ford 1 Symphony Park Hacse Lane Vale, Guernsey GY3 5DS (M) HUNTS KC Richard Lloyd c/o Spellfame Karting 83 Bunting Road Ind Est Northampton NN2 6EE Martin Reader Fringford House, Rectory Lane Fringford, Oxon OX27 8DX ISLE OF MAN KR ASSOCIATION Richard M Messenger 2 Harbour View Onchan, Isle of Man IM3 2AN (H) Gordon J Sweetapple 18 Odins Way, Ballakillowey Castletown, Isle of Man IM9 4BQ (H) JERSEY K & MC Andrew Davis 2 Trois Chenes Court Le Mont de la Chessnaie St Lawrence, Jersey JE3 1HR (H) KENT KRC Dannie F Pennell 2 Springpond Road Dagenham, Essex RM9 5DP (H) LINCS KC Rob Cannell 10 Malpas Road Matlock, Derbyshire DE4 3HT LLANDOW KC Nigel Kent Brynteg Farm Road Cefn Cribwr, Brigend South Wales CF32 0HA Mark Taylor 4, Castell Morgraig Pontypandy, Caerphilly CF83 3JH MANCHESTER & BUXTON KC Eddie Davis Glan y Gors Park Carrigydrudion Corwen, North Wales LL21 0RU NORTH OF SCOTLAND KC Ron Blanchard 16 Corrie Terrace Muir of Ord, Ross-shire IV6 7QR Roy S Wilson Waterboard Cottage Strathpeffer Road Dingwall Ross-shire IV15 9QF (H) 73

76 RAF MOTOR SPORTS ASSOC (KART) Liam Britten Burnbrae, 42 Alvescot Road Carterton, Oxon OX18 3JJ RISSINGTON KC Richard Lloyd c/o Spellfame Karting 83 Bunting Road Ind Est. Northampton, NN2 6EE ROCHESTER MC F6 Roger Sheffield 103 Tudor Avenue Worcester Park Surrey KT4 8TU (M) SHENINGTON KRC Mark Allen Cavalier Cottage, Edgehill Banbury, Oxon OX15 6DJ Chris Smith 26 Orchard Road Hook Norton Banbury, Oxon OX15 5LX (H) SOUTH YORKS KC Brian Lord Engelsea 9 Fern Close Springhead, Oldham OL4 4NS Rob Cannell 10 Malpas Road Matlock Derbyshire DE4 3HT TRENT VALLEY KC Adrian Mills JM Racing PF Circuit Brandon Grantham Lincs NG32 2AY Mick Barrett College Farm Station Road Swineshead Bridge Boston Lincs PE20 3PS TWO COUNTIES KC Ron Shone 125 Lanehouse Rocks Road Weymouth, Dorset DT4 9HY ULSTER KC Percy Jordan 193 Annadale Flats Ormeau Road Belfast, Northern Ireland BT7 3AX (H) Gordon Duncan 45 Castle Avenue, Moira Craigavon, Co Armagh BT67 4NH WARDEN LAW KC Peter R Knibb 9 Meadowgate Drive Tayfield Grange Hartlepool, Cleveland TS26 0RH (H) 74

77 APPENDIX 10 Kart Championships and Co-ordinators (Provisional) BSA Superkart Championship Long Circuit gearbox kart championship for F125 ICC, F125 Open, 250 National, Division 1 Superkarts and MSA British Championship for 250 National class. For details and registration contact: Mr Ian Rushforth, 6 Mansfield Avenue, Quorn, Loughborough, Leicestershire LE12 8BD Formula South East Championship Formula 6 Association, through Rochester Motor Club Limited, organise four stroke kart race meetings for all age groups. For details and registration contact: Mr Roger Sheffield, 103 Tudor Avenue, Worcester Park, Surrey KT4 8TU BRDC Stars of Tomorrow Direct drive classes for Formula Cadet, MiniMax, Junior Max and Super ICC including the MSA British Championship for Formula Cadet. There are expected to be qualifying rounds in some classes. For details and registration contact: Carolynn Hoy, Snowball Farm, Westbury, Brackley, Northamptonshire NN13 7JP Fax: Northern Karting Federation Includes ABkC S4 Championships for ICC UK and 250 National. Contact: Mrs A Laws, 2 Matfen Place, Fenham, Newcastle On Tyne, NE4 9DN National Kart Racing Association Clubmans Championship for most classes. Scotland, North of England, South of England regional championship and grand final combining all regions. For details and registration contact: Ron Shone, 125 Lanehouse Rocks Road, Weymouth, Dorset DT4 9HY Scottish Super Series Direct drive classes. Drivers must be a member of an ASKC club. For details and registration contact: Carol Blanchard, 16 Corrie Terrace, Muir of Ord, Ross & Comarty, IV6 7QR Super Two ABkC National Four Stroke Kart Championship ABkC National 4 stroke championship incorporating the Honda Challenge for Junior Senior and World Formula classes. Further information from ABkC at: Stoneycroft, Godsons Lane, Napton, Southam, Warwickshire, CV47 8LX secretary@abkc.org.uk 2007 Super 4 ABkC National Gearbox Kart Championships ABkC national championships short circuit gearbox classes. For details and registration contact: ABkC Secretary Elf B4 Super One National Kart Championships Direct Drive Classes including MSA British Championships for Formula A and JICA, and ABkC National Championships for ICA, 100 National, Rotax Max, TKM Junior and Senior, Cadet, Rotax Senior Max, Junior Max and Mini Max. For details and registration contact: Mrs Sonja Game, 16 Graham Road, Bicester, Oxfordshire OX26 2HP Challenge Details are available from Mrs Kate Bateman, The Villiers, 36 South Road, Aston Field, Bromsgrove, Worcestershire B60 3EL

78 APPENDIX 11 Provisional Championship Calendar BRDC Stars of Tomorrow (For Junior Max, Mini Max, MSA British Cadet Championship and ABkC National Super 4 Super ICC Championships.) 19th/20th April PF International (Not KZ1) 24th/25th May Rowrah 7th/8th June Whilton Mill 5th/6th July Llandow 9th/10th August Genk 13th/14th Sept Shenington Elf B4 Super One National Kart Championships All registered drivers wil be able to enter each round, there will be no pre-qualifying rounds MSA Renault British Kart Championship and Junior Championship (KF1 and KF3) plus the Renault ABkC Bridgestone KF2 Championship, ABkC Vega Formula 100 National and ABkC Dunlop Formula Cadet (Comer) National Championships 13th April Three Sisters 18th May PF International 15th June Rowrah 17th August Larkhall 31st August Whilton Mill 5th October Shenington TKM ABkC Championship for Formula TKM Extreme, Junior TKM, Junior TKM Extreme and Honda Cadet 23rd March TBA 27th April Larkhall 11th May Llandow 1st June TBA 28th September Clay Pigeon 12th October Buckmore Park Rotax Max ABkC Championship for Formula Rotax Senior Max, Junior Max, Mini Max and DD2 16th March Clay Pigeon 6th April Shenington 22nd June Buckmore Park 20th July PF International 7th September Rowrah 19th October Three Sister Formula WTP Little Green Man Championship 6th April PF International 27th April Whilton Mill 29th June Ellough Park 13th July Forest Edge (provisional) 27th July Three Sisters 24th/25th August Rowrah 7th September PF International 21st September Buckmore Park Super Two ABkC Four Stroke Kart Championship Comprising the ABkC Honda Challenge (Junior and Senior) and World Formula 23rd-25th August Rowrah ABkC InterNations Challenge Not being held in 2008 ABkC O Plate Allocations MSA KF1, KF2, KF3, 100 National MBKC: 30th August Three Sisters Rotax: 23rd/24th August Clay Pigeon TKM 2 & 4 Stroke: 5th October PF International Gearbox: 15th June Shenington Comer & WTP Cadet: 10th May Rowrah Honda Cadet: TBA Buckmore Park 2007/2008 KF1, KF2 and KF3 Winter Series 20th January PF International 17th February Shenington 9th March Rowrah NKRA Championship with regional qualifiers TBA TBA Northern Kart Federation Gearbox Dates NKF ICC UK/KZ2 and NKF KZ1 26th/27th April Fulbeck 10th/11th May Rowrah 31st May/1st Jun Rissington 26th/27th July Three Sisters 16th/17th August Shenington 4th/5th October Larkhall 76

79 ABkC Super 4 ICC UK (KZ2) 12th/13th April Rowrah 17th/18th May Shenington 21st/22nd June Dunkeswell 23rd/24th August Three Sisters 20th/21st Sept Llandow 25th/26th Oct Fulbeck ABkC Super National 19th/20th April Shenington 24th/25th May Three Sisters 7th/8th June Rowrah 26th/27th July Dunkeswell 13th/14th Sept Kimbolton 25th/26th Oct Fulbec Other Important Dates Welsh Championships: TBA Llandow London Cup: TBA Rye House British Kart Grand Prix: 19th/20th July Cadwell TV Kart Masters and Short Circuit GP: August 3rd PF International TKM Festival: 10th August Whilton Mill Midland Championships: 7th September Rissington International Calendar CIK-FIA World Karting (KF1) Championship & KF2 World Cup 21st September La Conca (I) CIK-FIA European KF1 Championship 4th May Angerville (F) 29th June Mariembourg (B) 3rd August Braga (P) CIK-FIA KZ1 World Cup 7th September Varennes (F) CIK-FIA European KZ2 Championship 4th May Angerville (F) 29th June Mariembourg (B) 7th September Varennes CIK-FIA European Superkart Championship See CIK website CIK-FIA European KF2 and KF3 Championships Northern Region Qualification: 13th July TBA Western Region Qualification: 13th July Alcaniz (E) Central Region Qualification: 13th July TBA KF2 Final: 3rd August Braga (P) KF3 Final: 7th September Varennes (F) CIK-FIA Asia-Pacific KF1, KF3 & KZ2 Championships TBA Macau (MO) CIK-FIA KF1 World Cup & CIK-FIA Asia-Pacific KF2 Championships 25th May Suzuka (J) CIK-FIA KF2, KF3 & KZ2 Viking Trophy 15th June Lapeenranta (FIN) Monaco Cup for KF3 15th June Lapeenranta (FIN) Rotax Mojo Max Euro Challenge 30th March TBA 1st June TBA 27th July TBA 28th September TBA WS Karting International Series 13th-16th March La Conca (I) [KF1, KF2, KF3] 3rd-6th April Angerville (F) [KF1, KF3, KZ2] 8th-11th May Lonato (I) [KF1, KF2, KF3] 5th-8th June Mariembourg (B) [KF1, KF2, KZ2] 17th-20th July Sarno (I) [KF2, KF3, KZ2] 2nd-5th October Zuera (E) [KF1, KF2, KF3, KZ2 Please see and for confirmed dates. CIK-FIA European KZ1 Championship 4th May Angerville (F) 29th June Mariembourg (B) 77

80 APPENDIX 12 Kart Race Fixtures 2007 DATE VENUE STATUS CLUB January 12th January Kirkistown Clubman 500 MRCI Ltd. (Karting) 20th January Shenington Clubman Shenington KRC 20th January Buckmore Park Clubman Buckmore Park KC 20th January P.F. International Clubman Trent Valley KC 26th January Blackbushe Circuit Clubman Camberley KC 26th/27th January Fulbeck Clubman Lincolnshire KRC 27th January Bayford Meadows Clubman Bayford Meadows KC 27th January Ellough Park National B Beccles & District KC 27th January Whilton Mill Clubman Whilton Mill KC February 3rd February Larkhall Clubman West of Scotland KC 3rd February P.F. International Clubman Trent Valley KC 9th February Kirkistown Clubman 500 MRCI Ltd. (Karting) 10th February Hooton Park Clubman Cheshire KRC 10th February Clay Pigeon Raceway Clubman Clay Pigeon KC 10th February Rowrah Clubman Cumbria KRC 17th February Buckmore Park Clubman Buckmore Park KC 17th February Warden Law Clubman Warden Law KC 17th February Shenington Clubman Shenington KRC 17th February Llandow National B Llandow KC 23rd February Blackbushe Clubman Camberley KC 23rd/24th February Fulbeck Clubman Lincolnshire KRC 24th February Bayford Meadows Clubman Bayford Meadows KC 24th February Ellough Park National B Beccles & District KC 24th February Whilton Mill Clubman Whilton Mill KC 24th February Dunkeswell National B Dunkeswell KRC March 2nd March Larkhall Clubman West of Scotland KC 2nd March Little Rissington National B Little Rissington KC 2nd March P.F. International Clubman Trent Valley KC 2nd March Sorel Point National B Jersey K & MC 9th March Hooton Park Clubman Cheshire KRC 9th March Clay Pigeon Raceway Clubman Clay Pigeon KC 9th March Rowrah National B Cumbria KRC 16th March Buckmore Park National B Buckmore Park KC 16th March Warden Law Clubman Warden Law KC 16th March Shenington Clubman Shenington KRC 16th March Llandow National B Llandow KC 16th March Barton Stacey Clubman Endurance Drivers Club 16th March Sorel Point National B Jersey K & MC 21st/22nd/23rd March Fulbeck Clubman Lincolnshire KRC 22nd March Blackbushe Circuit Clubman Camberley KC 23rd March Bayford Meadows Clubman Bayford Meadows KC 23rd March Whilton Mill Clubman Whilton Mill KC 30th March Ellough Park National B Beccles & District KC 30th March Littleferry Race Circuit Clubman North of Scotland KC 30th March Sorel Point National B Jersey K & MC 30th March Whilton Mill National B K.R.P. Ltd. (Easykart) 30th March Dunkeswell 78 National B Dunkeswell KRC

81 April 6th April Larkhall National B West of Scotland KC 6th April Little Rissington National B Little Rissington KC 6th April P.F. International Clubman Trent Valley Kart Club 13th April Hooton Park Clubman Cheshire KRC 13th April Clay Pigeon Raceway Clubman Clay Pigeon KC 13th April Boyndie Clubman Grampian KC 13th April Sorel Point National B Jersey K & MC 13th April Rowrah National B Cumbria KRC 19th April Kirkistown Clubman 500 MRCI Ltd. (Karting) 20th April Buckmore Park National B Buckmore Park KC 20th April Warden Law Clubman Warden Law KC 20th April Shenington Clubman Shenington KRC 20th April Llandow National B Llandow KC 26th April Blackbushe Circuit Clubman Camberley KC 26th/27th April Fulbeck Clubman Lincolnshire KRC 27th April Bayford Meadows Clubman Bayford Meadows KC 27th April Littleferry Race Circuit Clubman North of Scotland KC 27th April Whilton Mill Clubman Whilton Mill KC 27th April Ellough Park National B Beccles & District KC 27th April Clay Pigeon Raceway Clubman Endurance Drivers Club 27th April Sorel Point National B Jersey K & MC 27th April Dunkeswell National B Dunkeswell KRC May 4th May Larkhall National B West of Scotland KC 4th May Little Rissington National B Little Rissington KC 4th May P.F. International Clubman Trent Valley KC 11th May Hooton Park Clubman Cheshire KRC 11th May Clay Pigeon Raceway Clubman Clay Pigeon KC 11th May Boyndie Clubman Grampian KC 11th May Sorel Point National B Jersey K & MC 11th May Rye House National B K.R.P. Ltd. (Easykart) 11th May Rowrah National A+B Cumbria KRC 17th May Kirkistown Clubman 500 MRCI Ltd. (Karting) 18th May Buckmore Park National B Buckmore Park KC 18th May Warden Law Clubman Warden Law KC 18th May Shenington Clubman Shenington KRC 18th May Llandow National B Llandow KC 18th May Thruxton Clubman Endurance Drivers Club 24th May Blackbushe Circuit Clubman Camberley KC 24th/25th May Fulbeck Clubman Lincolnshire KRC 24th/25th May Rowrah National A Cumbria KRC 25th May Bayford Meadows Clubman Bayford Meadows KC 25th May Littleferry Race Circuit Clubman North of Scotland KC 25th May Whilton Mill Clubman Whilton Mill KC 25th May Ellough Park National B Beccles & District KC 25th May Dunkeswell National B Dunkeswell KRC June 1st June Little Rissington National B Little Rissington KC 1st June P.F. International Clubman Trent Valley KC 1st June Sorel Point National B Jersey K & MC 1st June Clay Pigeon National B K.R.P. Ltd. (Easykart) 6th June Larkhall National B West of Scotland KC 79

82 8th June Hooton Park Clubman Cheshire KRC 8th June Clay Pigeon Raceway Clubman Clay Pigeon KC 8th June Boyndie Clubman Grampian KC 8th June Sorel Point National B Jersey K & MC 8th June Rowrah National B Cumbria KRC 14th June Kirkistown Clubman 500 MRCI Ltd. (Karting) 14th/15th June Rowrah National A Cumbria KRC 15th June Buckmore Park National B Buckmore Park KC 15th June Warden Law Clubman Warden Law KC 15th June Shenington Clubman Shenington KRC 15th June Llandow National B Llandow KC 15th June Clay Pigeon Raceway Clubman Endurance Drivers Club 21st/22nd June Fulbeck Clubman Lincolnshire KRC 22nd June Bayford Meadows Clubman Bayford Meadows KC 22nd June Whilton Mill Clubman Whilton Mill KC 22nd June Sorel Point National B Jersey K & MC 28th June Blackbushe Circuit Clubman Camberley KC 29th June Whilton Mill Clubman Whilton Mill KC 29th June Littleferry Race Circuit Clubman North of Scotland KC 29th June Ellough Park National B Beccles & District KC 29th June Dunkeswell National B Dunkeswell KRC July 5th/6th July Little Rissington National B Little Rissington KC 6th July Larkhall National B West of Scotland KC 6th July P.F. International Clubman Trent Valley KC 6th July Ellough Park National B K.R.P. Ltd. (Easykart) 13th July Hooton Park Clubman Cheshire KRC 13th July Clay Pigeon Raceway Clubman Clay Pigeon KC 13th July Rowrah National B Cumbria KRC 19th/20th July Sorel Point National B Jersey K & MC 20th July Buckmore Park National B Buckmore Park KC 20th July Warden Law Clubman Warden Law KC 20th July Shenington Clubman Shenington KRC 20th July Llandow National B Llandow KC 20th July Barton Stacey Clubman Endurance Drivers Club 26th July Blackbushe Circuit Clubman Camberley KC 26th/27th July Fulbeck Clubman Lincolnshire KRC 26th/27th July Rowrah National B K.R.P. Ltd. (Easykart) 27th July Bayford Meadows Clubman Bayford Meadows KC 27th July Littleferry Race Circuit Clubman North of Scotland KC 27th July Whilton Mill Clubman Whilton Mill KC 27th July Ellough Park National B Beccles & District KC 27th July Dunkeswell National B Dunkeswell KRC August 1st/2nd/3rd August P.F. International National A Trent Valley KC 3rd August Whilton Mill Clubman Whilton Mill KC 3rd August Larkhall National B West of Scotland KC 3rd August Little Rissington National B Little Rissington KC 3rd August Sorel Point National B Jersey K & MC 9th August Glan-Y-Gors National B K.R.P. Ltd. (Easykart) 10th August Hooton Park Clubman Cheshire KRC 10th August Clay Pigeon Raceway Clubman Clay Pigeon KC 80

83 10th August Boyndie Clubman Grampian KC 10th August Rowrah National B Cumbria KRC 17th August Warden Law Clubman Warden Law KC 17th August Shenington Clubman Shenington KRC 17th August Llandow National B Llandow KC 17th August Sorel Point National B Jersey K & MC 23rd August Blackbushe Circuit Clubman Camberley KC 23rd/24th August Fulbeck Clubman Lincolnshire KRC 24th August Bayford Meadows Clubman Bayford Meadows KC 24th August Whilton Mill Clubman Whilton Mill KC 24th August Dunkeswell National B Dunkeswell KRC 24th/25th August Rowrah National B Cumbria KRC 31st August Littleferry Race Circuit Clubman North of Scotland KC 31st August Ellough Park National B Beccles & District KC September 6th/7th September Little Rissington National B Little Rissington KC 6th/7th September Rowrah National A Cumbria KRC 7th September Larkhall National B West of Scotland KC 7th September P.F. International Clubman Trent Valley KC 7th September Sorel Point Jersey K & MC 13th September Kirkistown Clubman 500 MRCI Ltd. (Karting) 14th September Hooton Park Clubman Cheshire KRC 14th September Clay Pigeon Raceway Clubman Clay Pigeon KC 14th September Boyndie Clubman Grampian KC 14th September Rowrah Clubman Cumbria KRC 21st September Buckmore Park National B Buckmore Park KC 21st September Warden Law Clubman Warden Law KC 21st September Shenington Clubman Shenington KRC 21st September Llandow National B Llandow KC 21st September Clay Pigeon Raceway Clubman Endurance Drivers Club 21st September Sorel Point National B Jersey K & MC 21st September Whilton Mill National B K.R.P. Ltd. (Easykart) 27th September Blackbushe Circuit Clubman Camberley KC 27th/28th September Fulbeck Clubman Lincolnshire KRC 28th September Bayford Meadows Clubman Bayford Meadows KC 28th September Littleferry Race Circuit Clubman North of Scotland KC 28th September Whilton Mill Clubman Whilton Mill KC 28th September Ellough Park National B Beccles & District KC 28th September Dunkeswell National B Dunkeswell KRC October 5th October Larkhall Clubman West of Scotland KC 5th October Little Rissington National B Little Rissington KC 5th October P.F. International Clubman Trent Valley KC 12th October Hooton Park Clubman Cheshire KRC 12th October Clay Pigeon Raceway Clubman Clay Pigeon KC 12th October Boyndie Clubman Grampian KC 12th October Sorel Point National B Jersey K & MC 12th October Rowrah Clubman Cumbria KRC 81

84 19th October Buckmore Park National B Buckmore Park KC 19th October Warden Law Clubman Warden Law KC 19th October Shenington Clubman Shenington KRC 19th October Llandow National B Llandow KC 19th October Barton Stacey Clubman Endurance Drivers Club 25th October Blackbushe Circuit Clubman Camberley KC 25th/26th October Fulbeck Clubman Lincolnshire KRC 26th October Bayford Meadows Clubman Bayford Meadows KC 26th October Littleferry Race Circuit Clubman North of Scotland KC 26th October Whilton Mill Clubman Whilton Mill KC 26th October Ellough Park National B Beccles & District KC 26th October Sorel Point National B Jersey K & MC 26th October Dunkeswell National B Dunkeswell KRC November 2nd November Larkhall Clubman West of Scotland KC 2nd November Little Rissington National B Little Rissington KC 2nd November P.F. International Clubman Trent Valley KC 2nd November Sorel Point National B Jersey K & MC 8th November Kirkistown Clubman 500 MRCI Ltd. (Karting) 9th November Hooton Park Clubman Cheshire KRC 9th November Clay Pigeon Raceway Clubman Clay Pigeon KC 9th November Rowrah Clubman Cumbria KRC 16th November Buckmore Park National B Buckmore Park KC 16th November Warden Law Clubman Warden Law KC 16th November Shenington Clubman Shenington KRC 16th November Llandow National B Llandow KC 16th November Thruxton Clubman Endurance Drivers Club 22nd November Blackbushe Circuit Clubman Camberley KC 22nd/23rd November Fulbeck Clubman Lincolnshire KRC 23rd November Bayford Meadows Clubman Bayford Meadows KC 23rd November Whilton Mill Clubman Whilton Mill KC 30th November Ellough Park National B Beccles & District KC 30th November Shenington Clubman Shenington KRC December 7th December Larkhall Clubman West of Scotland KC 7th December P.F. International Clubman Trent Valley KC 13th December Kirkistown Clubman 500 MRCI Ltd. (Karting) 14th December Clay Pigeon Raceway Clubman Clay Pigeon KC 14th December Llandow National B Llandow KC 14th December Rowrah Clubman Cumbria KRC 21st December Buckmore Park National B Buckmore Park KC 27th December Blackbushe Circuit Clubman Camberley KC 82

85 APPENDIX 13 Summary of Main Kart Classes for 2006 with popular options Class Number Weight kg (with driver) Ages Tyres Dry Tyres Wet Comments Plate/No. Short/Long/BSA Comer Cadet Yellow/Black 99 (S60 = 95) 8-13 Dunlop SL3 RAC KT3 RAC 60cc Comer sealed engine, clutch Honda Cadet Yellow/Red Dunlop SL3 RAC KT3 RAC GX160 4-stroke engine, clutch, budget class WTP Cadet Green/White 93 B1 / 103 B Dunlop SL3 RAC KT3 RAC 60cc WTP sealed engine, clutch, B5 Electric Start Junior TKM 2S Blue/White From Maxxis SLC F TKM As TKM with restrictor, optional clutch Junior TKM Extreme White/Black Maxxis SLC F TKM Extreme 115cc engine with restriction Junior TKM K4S Blue/Yellow Maxxis SLC F TKM Jnr version of F TKM 4S, clutch, restrictor Junior Blue Red/White See regs LeCont LH TAB LeCont W TAB IAME Lynx 100cc, clutch, driver weight/ restrictors MiniMax Yellow/Black Vega SL8 JAG Vega W2 JAG Restricted version of Rotax Junior Max Junior Max Red/White Vega SL8 JAG Vega W2 JAG Junior version of Rotax Senior Max KF3 Yellow/Black # B stone YGB MSA YEJ 125cc International TAG class TKM 2S Extreme Red/White 148/ Heavy Maxxis SLC F TKM BT82 115cc piston port, optional clutch TKM K4S Red/Yellow Maxxis Red Label F TKM 200cc 4 stroke, clutch F 100 National / K100 Green/White Vega SL6 GB W2 GB Earlier reed/rotary valve engines, 24mm carb Formula Blue Blue/White See regs 16 LeCont LH TAB LeCont W TAB IAME Lynx 100cc, club/economy TAG class Rotax Max Blue/White Vega SL6 JAG Vega W2 JAG 125cc d/drive commercial TAG class (electric start) Rotax Max/177 Green/White Vega SL6 JAG Vega W2 JAG Heavyw t version with 85kg min driver weight Honda Senior White/Red Dunlop SL1 KT3 2 x GX160, clutch KF1 Yellow/Black Dunlop DDM KT10 Premier International championship class, 125cc TAG KF2 White/Black B stone YGB MSA YEJ International 125cc TAG class 125 ICC (UK)/KZ2 Green/White Dunlop SL4 ABkC KT10 125cc reed valve with 30mm carburettor Super ICC/KZ1 Yellow/Black Dunlop SL4 ABkC KT10 Lightw t version of above, champs may use grippier tyres 125 Open Blue/White Dunlop SL4 ABkC KT10 Reed or rotary valve 125cc engines 250 National White/Black 195/ Maxxis CIK MH WT8 Motocross 250cc engines 250E (& see CIK Div 1) Green/White Open Open Twin cylinder Rotax twins Formula 210 Red/White 185/ Dunlop SL3 KT5/6/8/10 Classic Villiers 197 or replicas Key: * With baseline strip, + means 17 years age minimum for long circuit, # means from 12 years with min 12 mths Nat A licence. 83

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90 PUBLICATIONS, TECHNICAL PAPERS & CLUB EQUIPMENT Subject to their availability the products and their prices listed below are correct at the time of going to press, but may be changed without further notice. PUBLICATIONS (VAT zero rated) MSA Competitors and Officials Yearbook MSA Kart Race Yearbook MSA Motor Club Manual UK Circuit Guide Karting Circuit Guide Euro Circuit Guide Motor Vehicles (Competition & Trials) Regulations 1969/74/ CLUB EQUIPMENT (VAT standard rated incl.) Club Membership cards for Signing-On Sheets - Competitors/Officials FOC available on website Signing-On Sheets - Media FOC available on website Prohibited Area rigid PVC warning signs per pack of Motor Sports Can Be Dangerous rigid PVC warning sign per pack of Special Stage Warning day-glo warning sign Special Stage Danger day-glo warning sign Safety Tabbards (Yellow) TECHNICAL PAPERS (VAT zero rated, except = standard rate) MSA Rollcage Certificate *each MSA Historic Rally Vehicle Identity Form Registration MSA Competition Car Log Book payable to Scrutineer MSA Homologation Fiche (Kart) each FIA Historic Technical Passport Application (including App. K Copy, excluding Registration Fee) each FIA Current Homologation Papers for any UK car each FIA Current Homologation - Extension of any UK car each FIA Homologation Papers for any non UK car each FIA Current Homologation - Extension for any non UK car each FIA Lapsed Homologation Papers for any UK car each FIA Lapsed for any non UK car each MSA Original Roll Cage Registration (Trade only) MSA Production Kit Car Forms (Trade only) - Registration each MSA Production Kit Car Forms copy each * If to be posted to an address overseas 7.00 to be added to cover postage If to be posted to an address overseas 9.50 to be added to cover postage For the above items, please address order(s) to: Sales Dept, Motor Sports Association, Colnbrook SL3 0HG Purchase on-line from 88

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