Parts such as the Crankcase Cover: Gasket, Oil Pump Cover (mca), Breather, Bolt, Cover, Oil Pump are included in the Ty250 1974 Usa Crankcase Cover parts fiche.
The sub assemblies and components that make up this Crankcase Cover include this Cover, Crankcase Right, the most expensive part.
The Yamaha CRANKCASE COVER has fifteen products enlisted in the schematic.