The most reasonably priced component used on the Jb650-a2 Jetmate 1990 Europe Crankcase is the Pin,dowel,10x8.2x14.
Some items from this specific schematic: Gasket,control Valve, Valve-assy-reed,contr, Bolt,6x45, Bushing.
This schematic depicts all components used in the Jb650-a2 Jetmate 1990 Europe Crankcase partslist.