CHAPTER 18 Yamaha

Yamaha 1 Class

a) Yamaha

2 Age

a) Junior (i) Minimum Age: Year of 13th birthday (ii) Maximum Age: Date of 16th birthday b) Senior (i) Restricted by Licence (ii) Masters division: Minimum of 40 years old to Compete

3 Competition Eligibility

a) Club b) Zonal – Unless otherwise specified in State Regulations

4 Licence Requirements

a) Junior (i) Yamaha KT100J: Must hold a Junior Licence (ii) All other Engines: Must hold a Minimum B Grade Junior Licence b) Senior (i) Must hold a Senior licence

5 Chassis

a) Frame (i) Must comply with the Rules (ii) No Class specific conditions b) Wheels - Yamaha KT100SEC (i) The following Wheels and Wheel Hubs may be used on a Kart fitted with a KT100SEC engine: 1) Front: Edward Spoke F117S-5FUT 2) Rear: Edward Spoke R200-5FUT 3) Wheel Hubs must be aluminium

6 Drivetrain

a) Engine b) All engines listed below are permitted in either the Junior Division or Senior Division. (i) Type 1) Yamaha KT100J 2) Yamaha KT100SEC a. Must run with clutch and complete KT100SEC starter system 3) Yamaha KT100SE 4) Yamaha KT100SD

(ii) The following components must not be interchanged between the KT100SEC and the KT100SE and KT100SD engines: 1) Crankshaft Halves 2) Cylinder 3) Crankcases 4) Ignition rotor 5) Ignition stator 6) Ignition stator carrier plate (iii) All Yamaha KT100SEC, KT100SE and KT100SD engines must be fitted with a fin dampening system. (iv) Technical specifications available at karting.net.au (v) Maximum Number of engines permitted to be used by the Driver from the commencement of the first qualifying session at each Meeting 1) Two (2) c) Carburettor (i) Walbro WB Series in accordance with the Technical Rules. d) Induction Noise Silencer (i) AKA43 Homologated Assembly. e) Exhaust (i) Header Pipe 1) In accordance with the Technical Rules (ii) Restrictor 1) Not required (iii) Muffler 1) KT100J: In accordance with the Homologation otherwise the AKA14 Control Muffler must be used 2) All other engines: AKA39 Control Muffler. f) Ignition (i) Yamaha KT100SEC 1) Complete Yamaha KT100SEC system (ii) All other engines - In accordance with the Homologation g) Cooling (i) N/A h) Transmission (i) Gearbox not permitted i) Starter (i) Yamaha KT100SEC 1) Complete Yamaha KT100SEC system must be used (ii) All other engines – not permitted j) Clutch (i) Yamaha KT100J 1) Tomar TD22 (AKA#56) 2) Strike SS SSL (AKA#38) 3) Ital Red (Long Shaft) (AKA#55), Spec 3 Taperlock, Spec 4 Taperlock 4) ZEDTEC ZD1 X 5) AKA#52

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(ii) Yamaha KT100S Short Shaft 1) Strike SSS SL (AKA#45) 2) Freeline (AKA#44) 3) Ital Red S (Spec1, Spec2,Taperlock) 4) ZEDTEC ZD1 X 5) AKA#52 (iii) Yamaha KT100S Long Shaft 1) Tomar TD22 (AKS#56) 2) Strike SSS Evolution (AKA#47) 3) Ital Red (AKA#55), Spec 3 Taperlock, Spec 4 Taperlock 4) ZEDTEC ZD1 X (iv) Yamaha KT100SEC 1) Strike SSS SL (Short Shaft) (AKA#45) 2) Strike SSS Evolution (Long Shaft) (AKA#47) 3) Freeline (AKA#44) 4) Ital Red S (Short Shaft) (Spec1, Spec2, Taperlock) 5) Yamaha 7YPS (AKA#57) 6) ZEDTEC ZD1 X k) Fuel (i) No Class specific conditions

Competition Tyres

a) Dry (i) The only Dry Tyre permitted to be used must specified in the relevant State Regulations. (ii) Dunlop DFM or DFH 1) Front Tyre size must be a. 10 x 4.50 - 5 2) Rear Tyre size must be a. 11 x 7.10 - 5 (iii) Bridgestone YDS 1) Front Tyre size must be: a. 4.0/10.0-5 2) Rear Tyre size must be: a. 5.0/11.0-5 b) Wet (i) Dunlop KTW14W13 1) Front Tyre size must be a. 10 x 4.50 - 5 2) Rear Tyres size must be a. 11 x 6.50 - 5 c) From the commencement of the first qualifying session at a Meeting, only the following Tyres are permitted to be used during a Meeting unless otherwise advised in Supplementary Regulations: (i) one (1) set of Dry Tyres (plus one (1) replacement Dry Tyre if permitted in accordance with the Meeting); and (ii) one (1) set of Wet Weather Tyres (plus one (1) replacement Wet Weather Tyre if permitted in accordance with the Rules).

9 Social Karting Tyres

a) Dry (i) Vega - VAH (ii) Bridgestone - DR1 YJL, DR10 YLR ROK, YDS (iii) Dunlop - DFM, DFH, SL1A, RS1 (iv) MG - HZ Option (Red/White), AZ-Red, FZ Prime (Yellow) (v) Mojo - D2, D3, D4, D5 b) Wet (i) Vega - W2 (ii) Bridgestone - WER YLP (iii) Dunlop - KT14W13, KT12SLW2 (iv) MG - WT (White) (v) Mojo - W2, W3

General

a) Weight (i) Minimum weight including the Driver (Unless otherwise specified in State Regulations) 1) Yamaha - Junior: a. Yamaha KT100J: 131kg b. All other engines: 141kg 2) Yamaha - Senior Light: 141kg 3) Yamaha - Senior Medium: 161kg 4) Yamaha – Senior Heavy: 181kg 5) Yamaha - Masters: 161kg (ii) Maximum weight of a Kart excluding the Driver for Yamaha Senior Medium & Heavy Divisions: 90kg b) Data Logging (i) Only the following gauges are permitted to be used on a Kart using a KT100SEC engine: 1) Engine Speed 2) Temperature 3) Lap Timer c) Apparel (i) Refer to Technical Rules – Apparel. (ii) Rib protectors are mandatory for all Junior Drivers. (iii) Neck bRaces and chest protectors are recommended for all Junior Drivers. d) Competition Numbers (i) Background 1) Junior: White 2) Senior: Yellow (ii) Numbers: Black e) Permitted Modifications (ii) In accordance with the relevant Homologation