i got this bike from my brother when he moved away. it was in need of repair and some of the parts were missing. there are 3 wires coming from the magneto. red/black, yellow and red. the red/black wire goes to the CDI. can anyone tell me where the yellow and the red wires go. is there supposed to be a regulator or something? do i need to hook up the red and yellow wires if i don't have lights on the bike? any help would be good. thanks.