So as you thought, the fuse needed to be replaced. I replaced it, turned on the ignition (not engine) and the buttons were working. I put all the fairings back on and took it out for a ride and its blown again. Although I'm not sure, I'd guess that on igniting the engine it's blown. Any further ideas? I've got another fuse so could try again.
The fuse blowing will be connected with either the horn, brake light,or headlamp flasher circuit, most likely the brake light. Check all the wires to the brake light and to the brake light switches. Check that none of the wires to the horn are going to touch the frame or any other metal. It's unlikely to be the flasher since that's all done in the LH switch but it's worth checking that the wiring to the switch isn't chafing or is perhaps nipped by a too tight cable tie. I don't know if you're up to it, but as a test you could connect a spare indicator bulb or similar to a pair of wires so that it lights up if you touch the bare ends of the wires to the terminals of a battery. Push the bare ends, one into each side of the fuse holder so that the bulb is connected instead of the fuse. Turn on the ignition and try each circuit one at a time, brakes, then headlight flash, then horn. The bulb should light up dim when any of these are tried. The horn will try to pull a lot of current so will probably light up brighter than the others. If the bulb lights up at full brightness then that's the faulty circuit. Cheaper than fuses for testing
Do you know why it would blow when turning over the engine but not when just turning on the electrics?
I don't know. There is nothing on that fuse that is only active when the engine is turning. Perhaps a wire has got crushed and 2 circuits are being shorted together somewhere. Pay particular attention to anywhere that the wiring is cable tied to the frame. Sorry for taking a while to reply.
I don't know. There is nothing on that fuse that is only active when the engine is turning. Perhaps a wire has got crushed and 2 circuits are being shorted together somewhere. Pay particular attention to anywhere that the wiring is cable tied to the frame. Sorry for taking a while to reply.
Sometimes the wires around the headstock get pulled, stretched and rub together enough to short. I suggest you put a new fuse in, turn the bike on (don't start it) and then play with the buttons and turning the bars until you figure out what is triggering the fuse to blow, then you can begin to trace it.
