This Carburetor '85-'89 diagram displays the required parts for the Cr125r 1985 (f) Usa Carburetor '85-'89.
Some items from this specific schematic: Jet,#150, Carburetor Assy., Spring,compressio, Plate.buffer.
The most reasonably priced component used on the Cr125r 1985 (f) Usa Carburetor '85-'89 is the Pan Screw 4x16.