On this parts fiche the Screw-washer,4x16 is the most specified component.
Parts such as the Carburetor '85-'89: Carburetor Assy, Clip B7,tube, Bulk,vt-bh2,07x8m, Valve Set,float are included in the Cr250r Elsinore 1989 (k) Usa Carburetor '85-'89 parts fiche.
Check out any of the twenty-six Carburetor '85-'89 components enlisted.
