25-01-19, 10:26 AM
(25-01-19, 01:37 AM)His Dudeness link Wrote: The easiest way would be add a new length of wire straight from the battery to a fuse, then to a switch on the handlebar, then to the spotlight, then to ground. That will work and is the easiest way to do it and has no connection to the bike's loom but doing it that way means the lights can be left on even when the keys are removed so if you forget to turn the lights off they will drain the battery.
This is how I did it, with an in-line fuse on the positive and then earthing direct to frame. As His Dudeness says, the only problem with this is that it's possible to leave the lights on (which I did about 10 minutes ago, but someone pointed it out).
My main bit of advice would be not to go too cheap on the switch as the super-cheap one I fitted means that the lights sometimes still get a trickle feed with the switch turned off.