On this parts fiche the O-ring(50m) is the most specified component.
The most reasonably priced component used on the Fjr1300 2001 5jw2 France 115jw-351f4 Starting Motor is the Bolt,socket.
Parts such as the Starting Motor: Bolt,socket, Nut(3tk), Brush Set, O-ring(1rl) are included in the Fjr1300 2001 5jw2 France 115jw-351f4 Starting Motor parts fiche.