Some items from this specific schematic: Gasket,ex.pipe (nas), Gasket,cylin Head (nas), Gasket Kit A (as) (mca), O-ring,66.8x2.
This Gasket Kit A diagram displays the required parts for the Cb750k 750 Four K 1979 (z) Usa Gasket Kit A.
The lowest price component in this Gasket Kit A parts-list fiche is the O-ring,4.9x1.9.