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Making stop light more sensitive on rear brake: 82 750 Maxim

Discussion in 'XJ Technical Chat' started by manofchange11, May 31, 2012.

  1. manofchange11

    manofchange11 Member

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    Hello All,

    I was wondering how to properly adjust the sensitivity of the stop light when initiating the rear brake (1982 750 Yamaha Maxim)? What I mean in increasing sensitivity of it is to have the light go on sooner / more immediately when I depress the rear brake, instead of it going on after a whole inch of the peddle has been depressed.

    I found the electronic mechanism that activates the light that has a wire attached to it and where the other end of the wire attaches to a black arm that is attached to the break assembly itself.

    Do I adjust the electronic mechanism itself, if so, how?

    OR...Do I adjust the arm to make it go down further so that there is more tension on the spring/metal wire, if so, how?

    Any help with this would be greatly appreciated.
     
    manofchange11, May 31, 2012
    #1
  2. Metal_Bob

    Metal_Bob Active Member

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    With out being to technical or detailed (others are good for that), you can just adjust the spring tension near the switch you found.

    If your braking tension/travel is correct/acceptable just make minor adjustments to the switch mechanism.

    I did that when I first got my bike and after the switch spring snapped.

    Did you check rear brake pads for delamination?
    15 minute lifesaving job!
     
    Metal_Bob, May 31, 2012
    #2
  3. maverickbr77

    maverickbr77 Member

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    the sensor mechanism should have a nut on it that you adjust up and down to change when the switch activates.
     
    maverickbr77, May 31, 2012
    #3
  4. bigfitz52

    bigfitz52 Well-Known Member Premium Member

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    The switch "body" itself is threaded; using the locknut, you adjust the position of it so that it activates when needed.
     
    bigfitz52, May 31, 2012
    #4

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