With a quantity of two pieces, the Screw-wash.,4x12 is the most used part in the CARBURETOR ('81) diagram.
Parts such as the Carburetor ('81): Screw Set B, Bulk Tube,tb 35x1, Cap,cable, Valve,float are included in the Nc50 Express 1981 (b) Usa Carburetor ('81) parts fiche.
The Carburetor ('81) is made up of components including this Carburetor Assy. which is the most expensive.