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TOP END PISTON KIT 81-81 YAMAHA YZ 80 49.5mm +0.5mm OVER VINTCO KTY25-0.5
  • TOP END PISTON KIT 81-81 YAMAHA YZ 80 49.5mm +0.5mm OVER VINTCO KTY25-0.5
  • TOP END PISTON KIT 81-81 YAMAHA YZ 80 49.5mm +0.5mm OVER VINTCO KTY25-0.5
  • TOP END PISTON KIT 81-81 YAMAHA YZ 80 49.5mm +0.5mm OVER VINTCO KTY25-0.5
  • TOP END PISTON KIT 81-81 YAMAHA YZ 80 49.5mm +0.5mm OVER VINTCO KTY25-0.5
TOP END PISTON KIT 81-81 YAMAHA YZ 80 49.5mm +0.5mm OVER VINTCO KTY25-0.5

TOP END PISTON KIT 81-81 YAMAHA YZ 80 49.5mm +0.5mm OVER VINTCO KTY25-0.5

£171.87 GBP
Taxes included. Shipping calculated at checkout.

VintCo top end piston kit KTY25-0.5 is a complete top-end service kit for the 1981 Yamaha YZ80, supplied with a forged piston, gasket set and wrist pin bearing. This kit is sized at 49.5 mm with a +0.5 mm oversize and is intended for top-end rebuild work.

Features

  • Kit price includes a 10% discount over individual items
  • Complete top end kit
  • Forged piston made in Germany
  • MOS2-coated piston for running-in
  • Includes cylinder head gasket
  • Includes cylinder base gasket
  • Includes reed valve gasket
  • Includes exhaust pipe gasket
  • Includes wrist pin bearing

Specifications

  • VintCo Part Number: KTY25-0.5
  • Nominal size: 49.5 mm
  • Oversize: +0.5 mm
  • Piston size: 49.45 mm
  • Clearance: 0.05 mm

Cross-Reference OEM Part Numbers

  • Cylinder head gasket: 4V1-11181-00-00
  • Cylinder base gasket: 4V0-11351-10-00
  • Reed valve gasket: 3TT-13621-00-00
  • Exhaust pipe gasket: 3PA-14613-10-00

Vehicle Fitments

  • 1981 Yamaha YZ80