I got on my bike after work a few days ago and my headlight wouldn't work, all other lights are ok. I get no response when I use the pass switch or high/low beam. There is no switch to actually turn the headlight on as it turns on automatically with the bike. I checked all fuses and checked the wires behind the light and all seems ok. I also replaced the bulb (obviously first thing I tried) and nothing. Any ideas!???