[howley]

I'm having a series of annoying electrical problems. Firstly it was my 7.5A brake light fuse that was constantly blowing (3 times a week). That stopped, now the rear driving light filament in the globe is blowing. The fuse for the turn signals/warning lights is also blowing constantly. I wiggled some wires and put a new fuse in for the turn signals and it lasted a while, but just blew again and now will blow as soon as I replace it and turn the ignition on. I'm pretty sure its a short, but I don't know how to trace it. I have a multimeter and a continuity tester, but I don't understand how wiggling wires around with the tester across the fuse slot is going to tell me anything. If I use the continuity tester with the ignition off, its always going to show nothing, and if I turn the ignition on its always going to show something, right? It says in the haynes manual to do the tests with the ignition off, but in that case a short will only show if its shorting the ignition (which its not since fuses only blow when I switch the bike on).
I'm pretty confused as to how I'm gonna trace this sucker. Any help or past experience will be much appreciated.

 

[howley]

I found that the wires coming from the alternator to the regulator were in bad shape around the connectors. Some metal was exposed. I don't think it could directly contact the frame (maybe it could), but I taped it up and nothing blew. This happened before when I wiggled some wires around, and it blew later on, so I'm not sure if its problem solved, but could the wires from the alternator have been the problem?

Greenmonster, its a '94 m900.
Big, that makes way more sense!

Thanks guys, keep it coming!