09-800-02 | Yamaha Piston Kit 70.50 mm Oversize

Yamaha Piston Kit 70.50 mm Oversize

SPI pistons are a high-quality OEM replacement piston. Manufactured to OEM specifications, and made from the highest quality materials with all parts interchanging with original components.
Piston kits include piston, rings, wrist pin and circlips.

Piston rings are keystone type and only install one way. If the ring will not install properly check to make sure that the chamfered edge is to the top of the piston. The arrow on the top of the piston goes to the exhaust, except Polaris, arrow is on