The Left Crankcase Cover / Alternator assembly is constructed from several parts from which the Generator,a.c(nd) is the most expensive.
The Bolt,flange,6x25 is the most widely applied product in the XL500S 1980 (A) USA LEFT CRANKCASE COVER / ALTERNATOR ( nine times ).
Some items from this specific schematic: Bolt,hex.,6x12, Clamper,cord, Generator,a.c(nd), Contact Assy.