Some items from this specific schematic: Washer-spring,10mm, Nut,10mm, Pin-crank, Pin-piston.
The Crankshaft/piston/rotary Valve ( assembly is constructed from several parts from which the Crankshaft-comp is the most expensive.
The twenty-three Ke125-a7 Ke125 1980 Usa Canada Crankshaft/piston/rotary Valve ( component parts are all listed in this schematic.