Join Date: Apr 2016
Location: Central Illinois
Rep Power: 1
Headlight fuse blows when ignition switch is turned
New to my 919 and to the forum, I've done some digging around the interwebs, found some good information about the headlight circuit however I still can't track down where that gremlin lies.
Here's whats goin on:
My headlight fuse blows immediately upon me turning the ignition switch, resulting in no headlight, which means I can't legally ride it... very frustrating when the weather has been so nice!
Full disclosure: PO installed a dual headlight setup, with 2 H4 55/60W lamps, as well as some shitty aftermarket LED turn signals.
I suspected a frayed wire somewhere in the circuitry, so I began to take things apart to inspect the wires. Pulled the headlights, everything in good shape, checked out all the wires hanging out at the front of the bike, all looked pretty good, took apart both right and left hand switch housings, all good connections there as well. After going through a bunch of fuses testing out the different components, I decided to build a fuse tester, composed of an old headlight lamp connected to the fuse holder, idea being that the lamp would suck up some of the extra current that was otherwise blowing the fuse.
Here is where I stand now with everything plugged in: fuse testing lamp lights up bright immediately when I turn the key. The two headlights are very dim, the LED turn signals are all on but also dim. Turn signals have no effect on brightness of fuse testing lamp. Turning on the brights however causes the fuse tester to light up brighter.
1. When I unplug the headlights, the fuse testing lamp turns off.
2. When I unplug the right had switch controls, the testing lamp turns off.
I have a video to demonstrate what I'm talking about, however I have to go to work. Will post that up as soon as I get home!
Thanks for reading, any help is greatly appreciated, all I wanna do is get out there and ride!