Manufactured by
Kit includes piston, rings, pin, clips, wrist pin bearing top end gasket kit (you get exactly what is pictured)
Cast piston has super-high silicone content for additional strength
Piston skirts are Molybdenium Teflon coated to minimize resistance/wear and provide extended life
Piston dome is anodized for superior heat resistance and longer lifespan
gaskets use performance materials to increase durability and provide greater reliability
Includes all gaskets pictured to rebuild top end
Kit is for .020 over bore size – 47.50mm
Piston is 47.47mm
Compression ratio of 6.6:1
Compatible with Yamaha models below:
1983 – 2006 PW80
1986 – 1988, 1990 BW80