The most reasonably priced component used on the Yz80 Competition 1974 Usa Crankshaft - Piston Yz80a/yz80b is the Washer, Spring.
The Yz80 Competition 1974 Usa Crankshaft - Piston Yz80a/yz80b consists of twenty-eight pieces with the Crank Assy being the most expensive.
The Yamaha CRANKSHAFT - PISTON YZ80A/YZ80B has twenty-eight products enlisted in the schematic.