My bike doesn't have one. Can't really tell where or how it might have been mounted or attached (there is one short wire with a plastic coupling coming out of the mag that's not hooked to anything). From the photo's, it appears the switch is in a tall housing & mounted near the head bearing nut??? I can figure out which wire is supposed to go to the switch but don't know what goes on at the switch end (does it ground, or un-ground the ignition coil)?
Mike Sal