The Fuel Tank (model T) assembly is constructed from several parts from which the Tank Assembly,fuel (black) is the most expensive.
In this schematic the "Bolt(5x20)" is used most often.
Parts such as the Fuel Tank (model T): Emblem,fuel Tank, Spacer, Screw, Cushion are included in the Gsx600f 1988 (j) (e04 E18 E22 E34 E75 E77) Fuel Tank (model T) parts fiche.