In this schematic the "Washer,spg.,4mm" is used most often.
This Carburetor diagram displays the required parts for the Xl350 K0 1974 Usa Carburetor.
Parts such as the Carburetor: Jet, Slow (#48), Screw,cross 3x6, Jet,main#130, Arm Set, Link are included in the Xl350 K0 1974 Usa Carburetor parts fiche.