Left turn signal on my 1971 CB750 stopped working this week. I've had trouble with the switch, so assumed that was the problem, but when I opened the switch to look at it, it seemed fine. If I manually connect the contacts for the right turn signal there they work, but the left doesn't when I do the same thing. With a multimeter I get 12 volts across both sets (right and left). Bulbs are good, I checked.
I've never had to troubleshoot electrical problems. Any advice on where to start? I'm posting here in case this is a common problem and there are easy first things to try. I've been staring at the wiring diagram in the Clymer manual for an hour and if I look at it any more I think my head will explode,
