Parts such as the Cylinder Head Cover: Bolt, Cover,breather, Cover,breather, Cap,cylinder Head Cover are included in the Gs850 1986 (g) General Export (e01) Cylinder Head Cover parts fiche.
The most reasonably priced component used on the Gs850 1986 (g) General Export (e01) Cylinder Head Cover is the Bolt.
The ten Gs850 1986 (g) General Export (e01) Cylinder Head Cover component parts are all listed in this schematic.