How to: Brake light adjustments
Close
    
    
Results 1 to 4 of 4
Like Tree2Likes
  • 2 Post By Purple

Thread: How to: Brake light adjustments

  1. #1
    Junior Member Sharpline's Avatar
    Join Date
    Aug 2010
    Location
    Denver, CO
    Posts
    10
    Adjusting the rear brake light activation is easy enough. You will see a thin rod going up to a black switch attached with a spring. Screw the switch clockwise (looking down) tightening the pressure on the rod and therefor decreasing the activation time for the rear brake light (ie less brake pressure to activate the light).



    I have yet to figure out how to adjust the front brake light activation. It looks like the switch is build directly into the front brake handles housing. If any one has any tips please chime in.

  2. #2
    Senior Member srs713's Avatar
    Join Date
    Jul 2010
    Location
    Smyrna, GA, USA
    Posts
    1,417
    Yes the switch is mounted there in the switch housing with no method of adjustment. The front light switch just activates as the lever is pulled. If you want some light before the brakes actually start grabbing then you can adjust the screw that pushes on the master cylinder so that it doesn't contact right away.



    You could probably glue (JB weld?) a spacer of some kind on the end of the switch or the lever to change the resting contact angle if the lever is to far away from the grip for your hand to span comfortably.
    Stephen S.

    '07 TW200:

    15/50 sprockets, O-ring chain, D2Moto foot pegs

    tweaked carb (127.5 jet, 0.019 needle shim, idle screw @2.25),

    Rubbermaid "Action Packer" on homemade brackets

  3. #3
    Junior Member T-Flub's Avatar
    Join Date
    Oct 2014
    Location
    Pasadena, CA
    Posts
    3
    So it looks like I’m about 8 years late for this thread, but I found that I got quite a bit of front brake response before the brake light activated (I.e. the bike was slowing down without indicating to the motorists behind me that I was braking) and thought I’d share my solution.

    Step 1 was to screw the front brake adjustment screw away from the master cylinder so that the lever was required to be squeezed more, and thus the little shaft that activates the brake light switch allowed to extend fully, before any front brake activation was experienced. However, this step alone resulted in way too much brake lever free play.

    Step 2 (and I urge you to use your best judgement here, as this step is largely irreversible) is to file down the face on the brake lever which presses the shaft on the brake light switch in as the brake lever is released.

    The most obvious concern here is that if you remove too much material, then the shaft on brake light switch might be able to fully extend and thus activate the brake light even when you’re not squeezing the brake lever. This could probably be mitigated to some extent by screwing the brake lever adjustment screw back in towards the master cylinder. On the other hand, for me it was kind of annoying removing the brake lever, filing, sanding, polishing (you want a mirror finish so that there’s no grabbing of the brake light activator shaft by the surface on the lever as it begins to depress it), and reinstalling the lever 3 or 4 times before I found I had removed the desired amount of material.

    Another concern I had, though I’m not an engineer and am not sure how much of a concern this is, is that I imagine there’s a prescribed orientation, or angle at which the brake light activator shaft meets the surface of the brake lever which depresses it, with the aim being to direct as much of the pressure as possible straight down the center of this shaft, thus minimizing the amount of pressure acting on this shaft perpendicular to its travel in order to avoid damaging the switch. Whatever desired angle orientation there might be, it is likely that this will be lost without proper planning preceding the removal of material from the lever. I will mention that while I didn’t make overt efforts to address this, it was in the back of my mind and influenced my work.

    Step 3 is to make sure all surfaces are properly greased and the lever reinstalled.

    Step 4 is to test to make sure you have the desired brake light activation. For me, this was at the very end of the free play just before appreciable resistance from the master cylinder was felt. This allows me to give alert flashes as I approach some road hazard that I want to warn the motorists behind me of without actually slowing the vehicle.

  4. Remove Advertisements
    TW200Forum.com
    Advertisements
     

  5. #4
    Super Moderator Purple's Avatar
    Join Date
    Mar 2015
    Location
    Ynys Môn
    Posts
    4,684
    One of the solutions for people crazy enough to race these things, was to completely disconnect the rear brake light, while keeping the front live

    The theory goes like this – under heavy rear braking, the guys in the rear would see nothing and continue hard into the situation – while a gentle pressure on the front brake would give a false indication, resulting in them braking unnecessarily

    Not that I condone such actions of course – that would be cheating …….
    Ken and WyoCoyote58 like this.
    (Warning - Forum may contain nuts) ...... Hidden Content

    TW200 - 1998 - Japanese import - 7000 miles on the clock - TW225 Special Edition 2007
    - Hidden Content

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. trouble with tail light install - DRC Edge Brake Light
    By kennythewalk in forum Technical Help
    Replies: 10
    Last Post: 07-13-2017, 09:36 PM
  2. Brake / Blinker light combo
    By Uwdlk2no2 in forum Performance and Customization
    Replies: 5
    Last Post: 04-26-2013, 05:12 PM
  3. Front Brake Light Switch
    By Jtrez in forum TW200 Classifieds
    Replies: 5
    Last Post: 01-04-2013, 12:25 PM
  4. brake light not working, bulb ok
    By bondfast in forum Technical Help
    Replies: 3
    Last Post: 08-11-2012, 08:47 AM
  5. Brake light always on
    By tfactor in forum Technical Help
    Replies: 3
    Last Post: 07-02-2012, 05:43 PM