I bought a '03 wiring, want to fit it to '02 engine, stator and ignition coil seem to fit, but the bike has that regulator which is year 2002, having the wires BROWN and YELLOW coming out. I couldn't figure out do I need a original rectifier with those contact units coming out and would fit nicely to the wiring, if I'm not using the battery and starter, only lights? Thankss