I am swapping a 00 500 motor into my 04 400. The wiring harness is basically the same, but slightly diffrent. The wires going into the CDI are arranged diffrently, diffrent connector and there is a few extra wires. Should I swap the connectors from my 400 and use them on my 500 motor and use the 04 CDI and coil, or should I leave connector alone and swap CDI and coil from the 00? I know there is some diffrences with the gauges like the 04 had a tach.