Good luck.
Have you tried simply ubplugging and plugging in connectors yet?
I had a poroblem with mine misfiring, then not running when 1 friggin' connector would get wet.
I could ride it somewhere but at idle it wanted to run on 2 or 3 cylinders is what it seemed like.
if it died while the connector was wet, it wouldn't start, or if it did, i would 2 or 3 cylinder ride it home.
Finally found it, cleaned the contacts, applied liberal amounts of di-electric grease to keep the water and air out, and never had the problem since.
If i remember right it was a connector going from the timing plate to the wiring harness.
4 prong bugger (on my '79) on the right hand or the bike, near the battery about knee level.
Mind you where the battery is on a '79 frame is where the airbox cover is on a '81-'82 frame.
I hate electrical gremlins.
Some I found, and eliminated the problem.
Some I have no idea why it works, but it does.
I have a "mystery" switch for example.
I had problems at one time with starting the bike, so to save battery power i hooked a switch to cut the ground for the headlight and turn signal lights.
I switch 'em off and I could crank the motor longer before needing to recharge the battery.
carb problems, electrical ignition probs... can't remember why i did this anymore.
I tried removing the switchwhen i was done, and I started blowing fuses.
I put it back in, and left it on, and now everything is just fine.
However If i'm worried about the bike getting snagged, i switch it to off, no running, turn or headlights. Hopefully a thief would get pulled over before he got too far.
Don't ask me why, or how it works though... at this point I don't care, it works.
I understand electrical systems like I understand voodoo majic.
Just enough to look at it and think about whether it's real or an illusion.
l8r