How to Wire the Voltage Regulator in a Scooter

Written by tom lutzenberger
  • Share
  • Tweet
  • Share
  • Pin
  • Email
How to Wire the Voltage Regulator in a Scooter
Scooters require voltage regulators to make sure the power supply doesn't blow out light bulbs. (Sean Gallup/Getty Images News/Getty Images)

Wiring a voltage regulator in a scooter is not a hard task and can be performed in a few minutes. However, you need to know what you are doing and have the right wiring diagrams handy to avoid connection mistakes. Once completed the unit helps the scooter manage any voltage fluctuations so that the electrical component works properly without burning out.

Skill level:

Other People Are Reading

Things you need

  • New voltage regulator
  • Screwdrivers
  • Crescent wrenches
  • Notepad and pen
  • Scooter wiring diagram

Show MoreHide


  1. 1

    Obtain a new voltage regulator specific to your scooter model from a scooter parts store. Park your scooter in a clear work space where you can move around easily.

  2. 2

    Locate the battery of the scooter (typically on the side opposite the engine). Loosen the battery strap and use a screwdriver and crescent wrench to disconnect the battery.

  3. 3

    Remove the battery tray as well using the screwdrivers if it blocks access to the turn signal flasher unit and voltage regulator. Use a notepad and pen to note which colour wires go in which slot of the regulator before removing. Pull out the old wires from the old voltage regulator and loosen the unit from the scooter frame with a screwdriver.

  4. 4

    Install the new voltage regulator and position it properly. Tighten it down with the securing screws and your screwdriver. Connect the freed up wires consistent with the colour and connection your originally wrote down on the notepad. Use a wiring diagram for your model scooter if you're not sure.

  5. 5

    Replace the battery tray and reattach the battery. Secure it again with the battery strap. Turn on the scooter and its engine to test the electrical current and operation. Secure any remaining cover panels as necessary to finish the job. Throw away the old removed regulator.

Tips and warnings

  • Keep all your removed hardware in a cup so you don't lose the securing bolts and nuts as you remove and reinstall parts.
  • Make sure the battery is disconnected from the scooter before contacting wires and removing electrical parts. This will avoid electrical shock, even if minor.

Don't Miss

  • All types
  • Articles
  • Slideshows
  • Videos
  • Most relevant
  • Most popular
  • Most recent

No articles available

No slideshows available

No videos available

By using the site, you consent to the use of cookies. For more information, please see our Cookie policy.