How to Change Motorcycle Turn Signals


There are many aftermarket turn signals available for motorcycles if you're considering upgrading those ugly amber, stock turn signals to a fresh set of bling signals. Though this job may seem like a routine bolt-on, there are a few key steps that need to be followed in order to ensure proper installation.

Things You'll Need

  • Sockets and wrenches
  • Colored tape
  • Wire clipper and splitter (if needed)
  • Resistor (if needed)
  • Soldering tool
  • Wire connectors (optional)
  • Make sure your motorcycle is powered off before you start. Locate the front and rear wiring for each set of turn signals. If your bike has a fairing, you may have to remove it in order to reach the front turn signal wires. The rear turn signal wires are usually located under the seat, so remove the seat and check. Alternatively, you may have to remove the tail piece in order to reach the rear turn signal wires.

  • Disconnect the turn signal wires. The wires are usually color-coded; but if they are not, place a piece of colored tape on the wires in order to match them up later. Some turn signals connect via a male and female box connection; in that case, just unclip the male end from the female end.

  • Locate the hardware that mounts your turn signal to your bike. It's usually one bolt with a locking nut at the end and a few washers. Unscrew the nut with a wrench or socket and slide the turn signal out of its housing.

  • Insert the new turn signal by placing the wires through the rubber grommet first then routing the wires up through the same passage as the old wires were located. Fasten the turn signal to its housing.

  • Reconnect the wires, making sure each wire is connected to its corresponding mate. If your new turn signals did not have a box connector, you'll have to cut the box end off of the old wires that are connected to your bike. Slide off 1/2 inch of the plastic wire housing using a wire stripper. Twist the ends of the wires together and solder them. If you don't have a soldering tool, use a set of wire connectors found in most hardware stores.

  • Turn the motorcycle's power on and check the turn signals. If all looks good, install the fairing and tail piece, or any other part you had to remove.

Tips & Warnings

  • If your new turn signals are LED lights, chances are you will need an LED turn signal resistor if your bike is not equipped with one. This ensures that the turn signals flash at the same rate the stock turn signals did.
  • Never touch the wires unless there is no power to the bike's electrical system.

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  • Photo Credit Jupiterimages/ Images
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