The Cb550 Four Cb550k3 1977 Usa Points / Advancer consists of twenty-six pieces with the Advancer,spark being the most expensive.
Some items from this specific schematic: Screw-washer,5x12, Advancer,spark, Plate,contact Brk, Cover,point.
In this schematic the "Screw-washer,5x12" is used most often.