is the harness intact, or was it cut up where it all meets the battery box? The battery on this bike IS the regulator.. it's very easy to hook it up with the fuse in the wrong place.. then, it blows immediately, which only takes the battery out of the circuit. Once this happens, the stator is free to send 16 volts to all your 6 volt bulbs, blowing up everything that is on. Bet you at the very least blew the headlight low beam.