Parts such as the Air Cleaner: Bolt,hex.,6x12, Label, Pkg.,air Cleaner, Washer,seal,6mm are included in the Fl250 Odyssey 1980 (a) Usa Air Cleaner parts fiche.
The Bolt,hex 6x12 is the lowest priced item on this Air Cleaner schematic.
With four applications this Bolt,hex 6x12 is the most specified part.