The most expensive part in this assembly is the Carburetor Assy.
Parts such as the Carburetor: Float Set, Valve Set,throt., Chamber Set,float, Screw-washer,4x16 are included in the Xr200r 1981 (b) Usa Carburetor parts fiche.
The Screw-washer,4x16 is the most widely applied product in the XR200R 1981 (B) USA CARBURETOR ( three times ).