... hub, hub cover, kick sprocket, oil pump sprocket, sprocket sitting, timing chain, driving gear, magneto, etc. 5. Electrical: battery, lighting, ... key, relay, etc.6. Engine: cylinder, piston kit, piston ring, clutch kit, clutch disc& plate, clutch fiber, clutch housing, ... gasket, top gasket.13. Others: air filters, silencer, timing adjuster, chain adjuster, valve oil seal, oil seal, spark plug, spoke ...