Parts such as the Cam Chain: Bolt,cam Chain Tensioner, Tensioner,cam Chain, Nut, Screw are included in the Alt125 1985 (f) Usa (e03) Cam Chain parts fiche.
The Gasket 8.2x14x1 (nas) is the lowest priced item on this Cam Chain schematic.
On this parts fiche the Bolt is the most specified component.