The most reasonably priced component used on the Cb450k0 Black Bomber 1965 Usa Left Carburetor is the Spring Air Screw.
This Carburetor Assy is the most expensive of the items that make up this Left Carburetor assembly.
Parts such as the Left Carburetor: Spring Air Screw, Jet Pilot Sz 42, Carburetor Assy., L., Holder Needle are included in the Cb450k0 Black Bomber 1965 Usa Left Carburetor parts fiche.