Parts such as the Starter Clutch: Gear,starter Idle(nt:12,53), Clutch Set,starter, Clutch Set,starter, Bolt(14x21) are included in the Gsx600f Katana 1991 (m) Usa (e03) Starter Clutch parts fiche.
The most reasonably priced component used on the Gsx600f Katana 1991 (m) Usa (e03) Starter Clutch is the Pin(7x11x42).