The most reasonably priced component used on the Cb350k4 France Cylinder Head Side Cover - Breaker Advancer is the Washer,plain, 6mm.
Parts such as the Cylinder Head Side Cover - Breaker Advancer: Washer Pinion, Washer Thrust, Screw 4x5, Washer,spg.,4mm are included in the Cb350k4 France Cylinder Head Side Cover - Breaker Advancer parts fiche.
The most expensive part in this assembly is the Breaker,contact.