Re: White wire is the positve what do you for negtive?
No , a rectifing diod will only allow the positive current to pass thru, converting it from AC to DC positive current. What I did on mine is used a battery for a honda NC50 $20.00 and is only 3in. It is 6volt. I used the white wire to keep it charged. White wire soldered to a rectifing diod from radio shack. hooked to the positive wire. Negitive hooked to frame. all lights are one wire positive and bike frame negitive. But Norm has a system that does not use a battery, just the white wire, may be a better system. Lots of people here use it.