... seal(pic as below) 4.customer logo in head motorcycle engine valve 150cc, motorcycle engine valve, 150cc intake & exhaust valve Type Intake & Exhaust ValveEngine ... , cushion, battery and others. Transmission systemChain, sprocket, bearing, wheel, tires, rims, and others.Engine partsCylinder block, cylinder head, crankshaft, camshaft, piston, piston ...