2012 GSKA 2 Cycle & Shifter Classes

[John Wehrheim]

KID KART:
DRIVER REQ: Age 5 through 7
ENGINE: Comer C-50 or Comer C-51: (See Section 900)
FUEL: Gasoline & Oil
MINIMUM WEIGHT: 150 lbs.
TIRES: Open compound, front & rear size 10 x 4:50 or 4:60 – 5, Max rear circumference 33.75"
GEAR RATIO: 10/89
Bodywork: CIK style per WKA section 208 – 4 cycle style per WKA section 258 (Sportsman 1 apply)

YAMAHA SPORTSMAN:
DRIVER REQ: Age 8 through 12.
ENGINE: Yamaha, Only heads with OEM casting "Yamaha" and cylinders with Y3 or Y4 and 787 are legal
EXHAUST: RLV SSX-V #7548.
CARBURETOR: Walbro WA55B with WA55B manifold.
FUEL: Gasoline & Oil
MINIMUM WEIGHT: 250 lbs.
SPEC TIRE: Bridgestone YKC or YLC – 10 x 4.6 - 5 Front and rear.
OTHER: Gear Ratio 5.30 Min., NO Max.
NO AXLE CLUTCHES
Bodywork: CIK style per WKA section 208 – 4 cycle style per WKA section 258 (Sportsman 1 apply)
Cadet Chassis permitted - Wheelbase 35" minimum. (10# weight penalty possible)


YAMAHA JUNIOR:
DRIVER REQ: Age 12 through 15
ENGINE: Yamaha, only heads with OEM casting "Yamaha" and cylinders with Y3 or Y4 and 787 are legal.
FUEL: Gasoline & Oil
MINIMUM WEIGHT: 305 lbs.
EXHAUST: RLV SSX-V #7548. (See Section 554.3 and Fig. 554.3)
SPEC TIRES: Bridgestone YKC or YLC – 10 x 4.50-5 front, 11 x 6.00-5 rear
OTHER: NO AXLE CLUTCHES
Bodywork: CIK style per WKA section 208 – 4 cycle style per WKA section 258


YAMAHA SUPERCAN:
DRIVER REQ: Age 15 and older.
ENGINE: Yamaha, Only heads with OEM casting "Yamaha" and cylinders with Y3 or Y4 and 787 are legal
FUEL: Gasoline & Oil
MINIMUM WEIGHT: 360 lbs.
EXHAUST: RLV SSX-V #7548 (See Section 554.3 and Figure. 554.3)
SPEC TIRE: Bridgestone YKC or YLC – 10 x 4.50 - 5 front, 11x7.10 - 5 rear.
OTHER: NO AXLE CLUTCHES
Bodywork: CIK style per WKA section 208 – 4 cycle style per WKA section 258

TAG:
DRIVER REQ: Age 15 and older.
ENGINES & MINIMUM WEIGHTS: BM Jaguar – 370 lbs, Cheetah SQ 125 – 370 lbs, Comer K365 – 400 lbs., Easykart – 370 lbs., Morori Seven – 385 lbs, Parilla Leopard – 385 lbs., Rotax FR 125 – 385 lbs., Sonik TX 125 (125cc) – 400 lbs., Sonik VX 125 (118 cc) – 385 lbs., Vortex Rok ('03 & '04) 370 lbs., Vortex Rok TT – 390, PRD Fire Ball (2005 & 2008) 370 lbs., Parilla X-30 385 lbs. (Other engines and specifications TBA)
FUEL: Gasoline & Oil
EXHAUST PIPE/SILENCER: Must be stock pipe as supplied by manufacturer for that specific engine. On the Sonik TX and Comer engines,
the minimum combined length of the header and connector pipe must be at least 17" as measured from the back side of the header
flange at the cylinder, around the right side of the header, connector, and pipe to the first weld at the end of the divergent cone.
On Parilla Leopard and ROK TT engines, the minimum combined length of the header and connector pipe must be at least 15 3/4". See Section 610.4.2.
CARBURETOR: Must be stock carburetor as supplied by manufacturer for that specific engine.
SPEC TIRE: Bridgestone YKC or YLB or Mojo D2 – 10x4.50/4.60-5 front, 11x7.10-5 rear
AIRBOX: Required. See Section 551.
OTHER: In the event that the engine cannot be started on the grid with the
onboard starter, an auxiliary starter may be used. In any case, the onboard starter is subject to post race tech inspection to ensure that all components are present and correctly installed.
Bodywork: CIK style per WKA section 208


125 SHIFTER:
DRIVER REQ: Age 15 and older.
ENGINES & MINIMUM WEIGHTS: Stock Moto - 400 lbs., ICC & Mod Moto - 415 lbs.
FUEL: Gasoline & Oil
EXHAUST PIPE/SILENCER: Open pipe - silencer required
CARBURETOR: Open
TIRES: Open Compound 4.50/4.60x5 front, 7.10x5 rear (All 4 must be same brand & compound)
AIRBOX: Required.

PM me with any questions.
_________________
John
Board of Directors
Sr. 2 Cycle Director