'83 CMU , nothing displays

[venture83_98]

I have nothing displaying on my cmu. Not even when turning ignition on, when it should go thru each item. It was working a month or two ago, but now nothing. Is there a common power wire for the display? The display lights up with the dash lights, but displays nothing else.

 

While putting the bike back together, I did put a small gauge black ground wire on the positive battery terminal. (lesson learned: put down the tools when talking to your 8 year old daughter)

The wire melted down, and i followed it to the main negative cable. It was in a factory crimp with a few other grounds. After that, I have had to run new wires on the taillights and brake lights on the positive side, not the ground. No fuses blew, and i don't see any other fried wires. Maybe some damaged wires that I can't see in the harness some where? Time for a harness? Coincidence? sun spots? UFO's?? :confused24: