On this parts fiche the Screw is the most specified component.
The sub assemblies and components that make up this Carburetor Fittings include this Plate, the most expensive part.
The fifteen Gsx1100g 1991 (m) (e01 E02 E04 15 16 17 18 21 22 24 25 34 39 53) Carburetor Fittings component parts are all listed in this schematic.