Some items from this specific schematic: Carburetor Assy. 4, Joint Set A,fuel, Carburetor Assy. 3, Screw-wash. 5x16.
With all the components that make up the CB650 1982 (C) CANADA E-19 CARBURETOR (ASSY-LINK) assembly. The Screw-wash. 5x12 is the most frequently specified with eight applications.