how to wire a motorcycle tail light

Best answer


Attach the tail light to the power wire and ground it. The remaining tail light wire is for the brakes. Attach one cable from the power wire to each brake switch (front and back) and another wire from the brake switches to the taillight.

People also ask


  • How do you wire a tail light to a turn signal?

  • Attach the tail light to the power wire and ground it. The remaining tail light wire is for the brakes. Attach one cable from the power wire to each brake switch (front and back) and another wire from the brake switches to the taillight. Connect a power wire to your flasher relay and from the relay to your turn signal switch.

  • How do I choose the right wiring for my motorcycle?

  • If you plan to reuse some of the existing components from your project motorcycle, take a look at the manufacturer鈥檚 wiring diagram and label the wires above with their correct colors.

  • How do you know which wire is tail or brake?

  • There are generally 3 wires going into the tail section (one is Tail, one is Brake and the third is the Ground wire). You have a 50/50 chance of guessing which wire is Tail and which is Brake. If you guess right the first time, your light kit will work as expected.

  • Can you replace the wiring on a motorcycle harness?

  • Old wiring harnesses are fully of corrosion, broken wires, and poor continuity than can cause you all sorts of electrical headaches. While you can often find OEM replacement wiring harnesses or aftermarket harnesses that will work, these can be pricey. If you want to wire the bike yourself, it鈥檚 not too hard.