The lowest price component in this Cam Chain / Tensioner parts-list fiche is the Washer Seal, 6mm.
fifteen components are listed in the schematic for this Xl500r 1982 (c) Usa Cam Chain / Tensioner .
Some items from this specific schematic: Bolt,special,6x24, Collar,6x14.7, Bolt,special 6mm, Sprocket,cam.