Q&A for How to Install LED Lights on a Motorcycle

It's best to connect it to a chassis, or something made of conductive metal.

It is the ground wire. You connect it to the chassis or something that's made of conductive metal.

Red underglow is typically illegal in most states because red white and blue are colors for emergency vehicles. Check with your local laws first.

This is because your bike frame is a big piece of steel and the negative wire would ground out better.

This is because there is a wire still getting a connection to the battery when the breaker isn't working properly. Check your wire connections.

You should not add any additional lights to your headlight circuit. There is most likely a fuse that can handle only so many amps of draw from the battery between the light switch and the battery on your scooter. If you attach another set of lights to this light switch, you might draw more current than the fuse can handle. If that happens, then you will not have any lights on your scooter at all. You would be better off installing a cheap aftermarket switch somewhere discreet with an inline fuse to the LED lights.