This is a Yamaha OEM Cylinder that I cleaned, Painted, Bored/Honed to 50mm Spec's for the Wiseco Piston. This will make your Quad a 90cc. Which means more Torque and More All Around Power.

. Yamaha OEM Cylinder Bored/Honed to 50mm

. Wiseco 50mm Piston Kit ( Rings, Pin, Clips )

. Wiseco Top End Gasket Kit