The most reasonably priced component used on the Gl500i Silverwing Interstate 1981 (b) Usa Carburetor is the Screw-washer,4x10.
Some items from this specific schematic: Jet,slow,#45, Jet,main, #78, Screw-washer,4x10, Jet,main,#112.
This schematic depicts all components used in the Gl500i Silverwing Interstate 1981 (b) Usa Carburetor partslist.