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2002-11 YW50 ZUMA Athena Big Bore Hyper Race Cylinder Kit- 47.66mm Bore 081000/1

2002-11 YW50 ZUMA Athena Big Bore Hyper Race Cylinder Kit- 47.66mm Bore 081000/1

$ 139.79

Availability: 100 in stock
  • MPN: 0810001
  • Brand: Athena
  • Refund will be given as: Money Back
  • Manufacturer Part Number: 081000/1
  • Size: (70cc) - 47.66mm Bore
  • Return shipping will be paid by: Seller
  • Condition: New
  • Restocking Fee: No
  • Returns Accepted: Returns Accepted
  • Item must be returned within: 30 Days
  • Warranty: Unspecified Length

    Description

    Athena Big Bore Hyper Race Cylinder Kit 081000/1
    The race version of the popular Athena 70cc big bore kit, available in one part number.  All parts are available separately for custom builds.
    Includes: Shaped, domed cylinder head, state of the art cylinder with special porting, lighter flat top piston assembly (all of which are designed for higher compression and improved combustion efficiency), forged crankshaft assembly with larger 12mm wrist pin, top end gasket set, 19mm Dell’Orto carburetor, carbon reed valve petals, throttle cable, and Athena racing exhaust system.  Replacement of clutch rollers and springs may be needed for proper tuning
    Cylinder kits include cylinder, head, piston assembly, reeds, and gaskets
    Piston kits include piston, rings, wrist pin, and circlips
    Carburetors have a manual choke assembly and include a selection of main jets
    Hyper Race crankshafts have a lighter connecting rod, full crank rounds, and special needle bearings, but will not work with OEM type stock or standard Athena big bore pistons due to the larger 12mm wrist pin size.