Clay,
I will e-mail you a diagram showing the light switch charging system. Duey

Duey, Tried polarizing it, but NoGo. I took the generator off and ran some continuity checks. With everything disconnected, the F and A terminals, and all three brushes are shorted together. Is this normal? Is it likely that the F to Ground jumper I found hooked-up fused something in the internal wiring/windings? The first owner always disconnected the battery when not in use, so maybe the jumper was a "temp" fix. Cleaning it out with carb cleaner couldn't hurt...but seems like time to have it rebuilt. What do you think? Clay

Clay,
The field being grounded would make the generator charge full out. I think your whole system needs to be checked out by to find out what is good and what is not. A bad generator can zap the cutout relay or regulator and a bad cutout can cause the battery to discharge back through the generator and possibly cause damage. And then there is the wiring. That needs to be checked for breaks and shorts etc. I think you are on the right track,just make sure the wiring is good when you hook up any rebuilt parts. A generator system will take more abuse than an alternator system and still work but it sounds like your system needs a good check up from top to bottom. Duey

Clay, Do what Duey says, HE'S THE MAN!

Yup- good to see him back here again- it's been a while! Always good advice.