A sample from the products for the Left Crankcase Cover / Spark Advancer include: Bolt,flange,8x64, Cover,point, Screw,oval 6x25, Generator,pulse.
The component with the lowest price in the LEFT CRANKCASE COVER / SPARK ADVANCER schematic is the Washer,plain, 6mm.
On this parts fiche the Bolt,flange,6x32 is the most specified component.