While Smitty and I work out some carb issues, I thought I'd throw out this question. Does the wires from the magneto all HAVE to be hooked up? I have a Harley tail light, dual filament with one red and one black lead. The green wire from the magneto is the switched positive for the brake light, works fine. I tried going with the grey (tail light constant positive) to the black wire in the tail..nothing. So I grounded the black wire to the frame, and ran both the grey and green wires to the red wire in the tail..nothing. So now, I just have the green wire going to the switch wire and the grey is left alone...going nowhere. I taped it off and tucked it away. Does it need to be grounded or connected or is it OK as is...I remember reading that the lights and horns need to work to complete the circut?
Here's a pic of my wiring...thanks