In this schematic the "Screw-washer,4x16" is used most often.
Parts such as the Carburetor (2): Clip B7,tube, Valve Set,starter, Screw-washer,4x16, Collar,spring Set are included in the Cr250r Elsinore 1988 (j) European Direct Sales Carburetor (2) parts fiche.
The most reasonably priced component used on the Cr250r Elsinore 1988 (j) European Direct Sales Carburetor (2) is the Clip B7,tube.