This E-4 CYLINDER assembly utilises four O Ring 64.5x2(s) - the highest specified component.
This schematic depicts all components used in the Cb650sc 1985 (f) E-4 Cylinder partslist.
The most reasonably priced component used on the Cb650sc 1985 (f) E-4 Cylinder is the Nut,flange,6mm.