I've been running this short harness for years now. Last weekend, the bike died all of a sudden on the dunes. Ran a couple of checks and the stator and coil are good, there’re about 2 years old btw. I have an extra complete harness and ECU and bike fired up when I plugged it in thinking it was the ECU. Now, with this harness, the bike started only when I disconnected the black ground wire. I also jumped the kill switch/tether to eliminate the possibility of those being bad. Any ideas what could be wrong? What could happen if I leave that ground off? The plug with red tape on it goes to kill swith/tether and shares the ground coming off black coil plug. I checked the Clymer’s schematics and that a ground should be there, even though the stock harness is not grounded by a separate wire anywhere. Thanks