How to Install Aftermarket Turn Signals on a Honda Motorcycle

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Most Honda motorcycles use one of two methods to mount their front turn signals, placing them either along the sides of the front fork or mounted directly to the motorcycle's fairing. Rear turn signals are typically mounted to the rear fender. Unfortunately, neither location can protect the turn signals from damage during a tip-over or crash. Aftermarket turn signals can be installed into the original mounting positions as an alternative to costly stock turn signals, but often require some sort of adapter plate for a secure fit.

Things You'll Need

  • 5 mm Allen wrench
  • 10 mm open-end wrench
  • Flat screwdriver
  • Turn signal adapter plates

Fairing-Mounted Turn Signals

  • Remove the side fairings from your motorcycle, using a 5 mm Allen wrench. Reach behind the fairings and unplug the front turn signals from the motorcycle's wiring harness.

  • Unscrew the turn signal base mounting nut from the inner face of the fairing panels, using a 10 mm open-end wrench. Pry the metal plate out from the turn signal base, using a flat screwdriver, then slip the plate off of the turn signal wiring. Pull the turn signal out from the fairing panel.

  • Slip a turn signal adapter plate into the fairing panel's turn signal recess. Push the aftermarket turn signal mounting post and wiring through the hole cut into the center of the adapter plate. Slip the inner adapter plate over the turn signal mounting post and wiring on the inner face of the fairing. Screw the mounting nut onto the turn signal mounting post, using a 10 mm open-end wrench.

  • Plug the aftermarket turn signal into the motorcycle's wiring harness. Reinstall the fairing panel with a 5 mm Allen wrench.

Fork-Mounted Turn Signals

  • Remove the outer headlight trim ring bolts , using a Phillips screwdriver. Pull the outer trim ring and the headlight bulb out of the headlight shell. Unplug the electrical socket from the back of the headlight bulb.

  • Follow the wiring from the back of the turn signals to the wiring harness connectors housed within the headlight shell. Unplug the turn signals.

  • Unscrew the nut from the turn signal mounting posts, using a 12 mm open-end wrench. Pull the turn signals and their wiring out of the turn signal bracket.

  • Push the aftermarket turn signal wiring and mounting post through the turn signal bracket. Screw the mounting nuts onto the turn signal posts, using a 12 mm open-end wrench.

  • Route the turn signal wiring through the back of the headlight. Plug the turn signals into the wiring harness connectors.

  • Plug the headlight socket into the headlight bulb, then reinstall the headlight bulb and outer trim ring into the headlight. Screw the outer headlight trim ring bolts into place, using a Phillips screwdriver.

Rear Fender-Mounted Turn Signals

  • Follow the rear turn signal wiring from the rear fender to the wiring harness connectors located in the tail fairing or under the motorcycle's seat. Unplug the rear turn signals from the motorcycle's wiring harness.

  • Unscrew the rear turn signal mounting bolts from below the rear fender, using a 12 mm open-end wrench. Pry the metal plate out of the turn signal base, using a flat screwdriver. Pull the turn signals and their wiring out from the rear fender.

  • Slip a turn signal adapter plate into the rear fender's turn signal recess. Push the aftermarket turn signal mounting post and wiring through the hole cut into the center of the adapter plate. Slip the inner adapter plate over the turn signal mounting post and wiring on the inner face of the fender. Screw the mounting nut onto the turn signal mounting post, using a 12 mm open-end wrench.

  • Plug the rear turn signal wiring into the wiring harness connectors located in the tail fairing or under the motorcycle's seat.

References

  • "Honda CBR1000R Service Manual"; Honda Motor Co.; 2006
  • "Honda VT600C Service Manual"; Honda Motor Co.; 2005
  • "Honda VT1100 Service Manual"; Honda Motor Co.; 1998
  • Honda CB250/360 Shop Manual"; Honda Motor Co.; 1976
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