Parts such as the Carburetor: Ring, O-ring, Screw, Pan Head (481), 98502-04012 are included in the Tz125 2000 4jt7 Japan 104jt-100e1 Carburetor parts fiche.
The sixty-three Tz125 2000 4jt7 Japan 104jt-100e1 Carburetor component parts are all listed in this schematic.
The Carburetor assembly is constructed from several parts from which the Carburetor Assy 1 is the most expensive.