On this parts fiche the Bolt is the most specified component.
This part-list fiche shows all the components that make up the Rf900r 1997 (v) (e02 E04 E22 E24 E25 E34) Crankcase .
Some items from this specific schematic: Bolt 10x280, Plug,crankcase,upper, Gasket(10.2x20x2).3 (nas), Plug(10x6.8).