Yamaha PW50 Big Bore 60cc Top End Kit

50 Caliber Racing 60cc Big Bore Top End Kit for Yamaha PW50 & QT50 Pit Bikes

Bolt on 60cc Big Bore Kit for Yamaha PW50 and QT50 Pit Bikes. Ready to install out of the box, includes all gaskets and components necessary to rebuild your top end. Our kits are complete, high quality, and will extend the life of your toys for many more years of enjoyment. This kit can be installed by anyone with basic mechanical skills that is not afraid to turn some nuts and bolts. This kit requires cleaning and reuse of the stock head. Breathe new life into your bike with our high quality, affordable, and reliable big bore kit!

Kit Includes:
- 1 Cylinder
- 1 Piston
- 2 Piston Rings
- 2 Circlips
- 1 Piston Pin
- 1 Head Gasket
- 1 Base Gasket
- 1 Pin Bearing
- 4 Cylinder Studs
- 4 Stud Nuts
- 1 Spark Plug

Fits the following Yamaha models:
- PW50 Y-Zinger Peewee 50 (1981-2018)
- QT50 Yamahopper (1979-1987)