Front brake dragging on my '89 Transalp

Discussion in 'Thumpers' started by Nappysh, Apr 25, 2013.

  1. Nappysh

    Nappysh Adventurer

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    Hey all, have been having some problems with my front brake. I was riding the other day, and noticed the front brake lever was slightly more depressed than usual, and had a lot more freeplay. Upon further inspection, I noticed the front wheel was experiencing some drag. Anyone know how to fix this?

    It's so nice in Seattle! I must ride! Thanks!
    #1
  2. Sumi

    Sumi Long timer

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    At least.. I always knew KTM made these bikes aswell, instead of Honda:)) haha

    However brakes are brakes.. give the calipper and pistons a good clean, grease the sliders (pins?) - they tend to seize , preventing the pads from moving properly - with some copper grease, and see if it gets any better:)
    #2
  3. nevgriff64

    nevgriff64 Super Moderator Super Moderator

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    Thumpers is the forum for all your Transalp questions, Nappysh.

    Orange Crush is for KTM twins. :thumb
    #3
  4. Nappysh

    Nappysh Adventurer

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    Thanks for the reply, just to clarify..you recommend I take off the whole brake piece that holds the brake pad, and clean it?

    What exactly are pistons, and where are they usually located?
    #4
  5. Seikkailu_R

    Seikkailu_R Been here awhile

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    Since when huge Honda twins are called thumpers... :huh :D

    For brakes, cleaning and greasing with new fluids and seals should do the trick.
    #5
  6. Nappysh

    Nappysh Adventurer

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    Hmm are you suggesting a brake bleed? I noticed my lever is gaining more and more freeplay as I use the brake. Any thought?
    #6
  7. Lomax

    Lomax Nanu-Nanu Adventurer

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    With the lever gaining more freeplay as you use it it indicates a few things. But the most common would be that the master cyl. return is partially plugged. The only way to REALLY cure it is to completely clean out the master cyl. (maybe even have to rebuild) Triple check the condition and cleanliness of the lines (inside too) and pull the caliper and clean and reseal it and put in all fresh fluid. Or it could just be a little piece of crud in the master cyl return bleed hole. :lol3

    Marc
    #7
  8. Nappysh

    Nappysh Adventurer

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    Cool, I'm a novice mechanic but this doesn't seem too terribly difficult. Will I be okay riding the bike to and from work for a few days ya think?
    #8
  9. Nappysh

    Nappysh Adventurer

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    hmmm, I drove my bike to work today without using the front brake, and noticed that when I arrived, the brake lever went back to normal. Then I used the front brake a bit on my way home and noticed the problem still persists. Any thoughts on that that might minimize the work?

    Also I'm still not sure if I should be riding the bike around? Is it safe if I lay off the front brakes? I just don't want them to lock up on me or something dangerous.

    Thanks again
    #9
  10. Seikkailu_R

    Seikkailu_R Been here awhile

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    Do it, order repeir kit for calibers and master cylinder, clean brakes, disasemble and clean again, rebuild with new parts and fresh fluid.

    It will take only few hours, and you will suprise how different those brakes feel.
    #10
  11. Nappysh

    Nappysh Adventurer

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  12. Nappysh

    Nappysh Adventurer

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    Tried bleeding the brakes (it was my first time), and now the lever is 100% free play. Anyone know what I might've done wrong?
    #12
  13. joexr

    joexr Banned

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    Sounds like air in the master cylinder , is it empty?
    #13
  14. Seikkailu_R

    Seikkailu_R Been here awhile

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    Description on linked parts verent very informative, cant say if these fit...
    Other part claims it fit sportsters and big twins... ?

    You are looking something like this (#19 on picture) for master cylinder, and something like these (8 & 15 on picture) for calibers.
    #14
  15. Nappysh

    Nappysh Adventurer

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    Cool, thanks for the help dudes!

    Easy riding!
    #15
  16. Beezer

    Beezer Long timer

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    I had similar problems on my GS.... brake lines were deteriorated inside and rubber was flaking off. this allowed the brakes to actuate but were very slow to retract. it also put rubbish in the ABS & killed it. bike was a year 2000. the hoses looked good on the outside. if there are/were any black specks in the old fluid thats whats happening

    I agree that the "no feel" lever is due to air, sometimes it takes a 2nd set of hands to do a good bleed. sometimes it helps to pump the lever & hold while someone opens the bleeder & then shuts the bleeder. repeat that until the feel returns.
    #16