Cylinder Kit 40.5mm for 50cc Yamaha PW50 Engine Includes all mounting hardware

Includes all mounting hardware

If you are needing a longer case 3-bolt starter

Piston Diameter: 46

Keeway 250

96 in) deep [mounting sleeve not included]

Cylinder Kit 40.5mm for 50cc Yamaha PW50 Engine Includes all mounting hardwareChinese 40. 5mm Cylinder Kit for 50cc Yamaha PW50 Engine. This Chinese 40. 5mm cylinder kit is the replacement part for the Yamaha PW50 dirt bike. Cylinder kits ship complete with cylinder, 40. 5mm piston, piston rings, piston pin, piston clips, and top end gasket set. This kit fits the Yamaha PW50 50cc models. Cylinder kit description: Top end gasket set included [as pictured] Piston kit also included [as pictured] Piston Height: 50mm approx. Piston