High-beams won't stay on?
 

I have a 90 vert with a high-beam issue. My current selector switch will not keep my high-beams on. I can hold it in and the high-beams come on but will not stay on. I replaced the selector switch and had the same issue. Any thoughts?

It's possible the replacement part was defective as well. The role of the Dimmer Switch is to send a ground signal to the Dimmer Relay. W/the lights on this would cause the high beams to turn on. Locate the Dimmer Relay and w/the lights on jumper a ground wire to the relay plug where the White wire resides. If the high beams come on when doing this then chances are the Dimmer Switch is at fault.

Thanks for the help, Ill try it out and see what happens.