The most reasonably priced component used on the Cb750f 1983 (d) Italy Left Crankcase Cover - Spark Advancer is the Washer,plain, 6mm.
Some items from this specific schematic: Bolt,flange,8x64, Washer,plain, 6mm, Cover,point, Gskt,point Cover (nas).
This Generator,pulse is the most expensive of the items that make up this Left Crankcase Cover - Spark Advancer assembly.