Hey There,
I have a 1978 XL350 -

I am stumped on an electrical issue that has my headlight out, neutral light out, and brake light doesn't work. Its weird because the taillight lights up fine and the horn works when the ignition is turned on, but nothing else. I am doing my best to trace through all the connections, make sure they are all connected to the right place, and using a volt meter to see that they are getting power. I am not 100% confident in my troubleshooting of this because I am new to fixing electrical on a motorbike, however I think I am seeing that at some point somewhere near the headlight (inside) I feel like I've got nothing going to the light (voltmeter touching the connections of the back of the headlight light bulb). Nothing seems to be going to the light switch on the handlebar as well (remember though that the horn wire are getting power and working). It also doesn't seem as though any power coming from the wires that should plug into the flasher (winker) either.

My thoughts so far -
some wires are no good that are running to my headlight (blue, grey)
light switch no good?
headlight no good?
Can't think of a damned reason the breaklight won't work when the taillight does?

I'd be happy to get any kind of advice in the form of troubleshooting steps, solutions, whatever.

Thanks.
Greg

MSLA., MT