The most reasonably priced component used on the Gsx750 1980 (t) (e01 E02 E06 E22 E24) Left Handle Switch is the Nut 6mm.
Check out any of the thirteen Left Handle Switch components enlisted.
The Gsx750 1980 (t) (e01 E02 E06 E22 E24) Left Handle Switch consists of thirteen pieces with the Switch Assy, Handle Lh being the most expensive.