Brake light always on?
Close
    
    
Results 1 to 6 of 6
Like Tree5Likes
  • 2 Post By TW-Brian
  • 1 Post By Ken
  • 1 Post By ToolmanJohn
  • 1 Post By Fred

Thread: Brake light always on?

  1. #1
    Senior Member nfpgasmask's Avatar
    Join Date
    Nov 2010
    Location
    Reno, NV
    Posts
    500

    Brake light always on?

    Hi guys, a bit off topic, I picked up a really clean 1989 Yamaha XT350 yesterday. Bike runs and looks great. The only issue it has is the brake light seems to just stay always on. Normally, you would have a tail light and then the brake light would illuminate brighter when you press on the brake. Being that this bike is nearly identical to the TW I figured one of you on here might have the know-how to fix this.

    The first thing I did was to disconnect the rear brake and see if the adjuster there is what was causing it. However, with the rear brake unplugged and the ignition key ON it still does it.

    So now, I am thinking this must be some wiring issue. Can any of you guys point me in the right direction to look?

    Thanks - Bart

  2. #2
    Senior Member TW-Brian's Avatar
    Join Date
    Dec 2010
    Location
    Pleasanton, CA
    Posts
    5,740
    Bart, don't forget that there is also a switch on the front brake lever that activates the rear brake light. That could be causing your problem.

  3. #3
    Senior Member nfpgasmask's Avatar
    Join Date
    Nov 2010
    Location
    Reno, NV
    Posts
    500
    OK, so, trace the wires from the front brake level to a switch there?

    Thanks - Bart

  4. Remove Advertisements
    TW200Forum.com
    Advertisements
     

  5. #4
    Ken
    Ken is offline
    Senior Member Ken's Avatar
    Join Date
    Aug 2016
    Location
    Houston, Texas
    Posts
    1,929
    That switch generally is connected right at the lever. Some you can just unplug and see if it goes out.
    Fred likes this.

  6. #5
    Senior Member ToolmanJohn's Avatar
    Join Date
    Nov 2016
    Location
    Bristol Connecticut
    Posts
    308
    If the brake lever switch (plunger) is sticking, your brake light will remain on. If the brake lever itself is not returning (spring broken, or gummy lever pivot) the switch plunger will remain on.
    Fred likes this.
    2017 Beta Xtrainer 300 - Suspension modified for height
    2013 Yamaha TW200 (Sold but not forgotten, possibly in the future when space permits)
    2007 Kawasaki Ninja 650R (sold) Fun for a year, then mega garage DUST collector
    1985 Honda CB650SC Nighthawk (sold) FUN - but became a dust collector
    1984 Honda CB450SC Nighthawk (sold) Primary transportation for almost 5 years
    Various other 2 wheel rolling junk not worthy of mention....

  7. #6
    Senior Member Fred's Avatar
    Join Date
    Dec 2011
    Location
    Turtle Wrangling the Sierras
    Posts
    18,813
    ...and if it ain't the front brake lever's switch maybe test some assumptions one naturally makes on a new bike. For instance I would next pull the cover off tail light assembly and confirm proper bulb making proper contact with the proper terminals in the proper socket with proper voltage measurable at each terminal. Never assume previous owner was a meticulous maintainer. You won't know what is there until you look.
    Peterb likes this.
    2003 TW200 "Betty Boop"
    2006 TW200 "Nibbler", a.k.a. “Mr.Gizmo"
    Hidden Content All Things Considered I’ld Rather Be Motorcycling

Sponosred Links

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  

Similar Threads

  1. How to: Brake light adjustments
    By Sharpline in forum Technical Help
    Replies: 3
    Last Post: 01-11-2018, 03:01 PM
  2. trouble with tail light install - DRC Edge Brake Light
    By kennythewalk in forum Technical Help
    Replies: 10
    Last Post: 07-13-2017, 08:36 PM
  3. Hi from Australia. Front brake and brake light
    By lozinoz in forum Technical Help
    Replies: 29
    Last Post: 04-05-2016, 05:21 PM
  4. Brake light always on
    By tfactor in forum Technical Help
    Replies: 3
    Last Post: 07-02-2012, 04:43 PM