The Carburetor Comp. 90-93 assembly is constructed from several parts from which the Piston Comp.,vacu is the most expensive.
This schematic depicts all components used in the Vfr750f 1990 (l) Usa California Carburetor Comp. 90-93 partslist.
In this schematic the "Screw-washer,4x16" is used most often.