I purchased a barn find parts 82' Urban Express. The wiring was hanging out of where the battery mount was supposed to be. Initially, I just soldered the green wires together and and bypassed the black/red wires that run to the battery plug since neither was still attached.
I should point out this is my first build and I'm not a mechanic.
I've purchased two batteries and just cut the plug that comes with it and put bullets on to match the rest of the bike.
The bike now runs great but my blinkers and tail lights keep blowing out without battery. This is because the battery regulates the power as it's sending up to 35 volts to lights when throttle is engaged.
When I hook up the battery however it reverses polarity. I've tried splicing a ground near the battery to the engine but this did nothing to solve the issue. Maybe I grounded it at the wrong spot in the circuit? could this cause the reverse polarity?
I'm about to just pull the harness and look to see if maybe I hooked something up weird in my first few days of learning the bike but I can't imagine I would have soldered a red wire to a green one. But going to just completely map each wire according the the wiring map. It's the only idea I have left.
Has anyone ever heard of such an issue other than simply hooking the battery up opposite? (That's not what I did :) )
But something weird is definitely happening. Any random ideas of how I'm feeding power to battery in opposite poles? Or any spot in the wiring that could backfeed to the negative?