Parts such as the Crankcase: Bolt, Hexagon Socket Head, Cover, Cap, Bolt, Hexagon Socket Head, Bolt are included in the Xv1600a 2001 5ja8 Greece 115ja-300e1 Crankcase parts fiche.
On this parts fiche the Bolt, Socket is the most specified component.
The Yamaha CRANKCASE has thirty-one products enlisted in the schematic.