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Thread: '92 K75S with ABS - Changing the brake hose at the master cylinder

  1. #1
    '94 K75 heejrbmw's Avatar
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    '92 K75S with ABS - Changing the brake hose at the master cylinder

    I have just added the A&S bar back to my K75S. The brake line attached to the master cylinder is a bit too short in my opinion, as it has almost no slack. So, I'm changing the stock line to the C ABS hose 34 32 1 457 909 BRAKE HOSE - L=435MM as 98Lee suggested.

    My question: I read in my Clymer manual that I will be required to get a BMW service facility to bleed the system. I read here on the forum in past posts about people doing this task themselves.

    I have bleed the brake lines on my K75 without ABS, and it was not difficult. With what I'm reading about doing the same job on the ABS equipped system, I'm not sure I can do the job or should try, although I would like to try if possible.

    Is it as difficult as Clymer makes it seem? Does anyone have step-by-step instructions and list of tools required so that I can attempt to do the job myself?

    Ed
    Ed Evans - - Semper Fi
    '94 K75 '92 K75S
    "Always do more than expected." Coach Jerry Moore, ASU

  2. #2
    Benchwrenching PGlaves's Avatar
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    Bleed it the same as without ABS, except bleed at the bleeders on the modulators first. That will get out most of the fluid and any air above the modulators. Then bleed at the wheel calipers just like on your other bike. I prefer a "one man brake bleeder" which is a simple one-way valve on the end of a vinyl tube. It makes bleeding brake systems easy.
    Paul Glaves - "Big Bend", Texas U.S.A
    "The greatest challenge to any thinker is stating the problem in a way that will allow a solution." - Bertrand Russell
    http://www.bigbend.net/users/glaves

  3. #3
    '94 K75 heejrbmw's Avatar
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    Sounds encouraging. Thanks Paul. I believe I will try it!

    How much brake fluid and what type should I have on hand?

    Ed
    Ed Evans - - Semper Fi
    '94 K75 '92 K75S
    "Always do more than expected." Coach Jerry Moore, ASU

  4. #4
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    Two small cans of DOT4.
    Ron

    91 K75RT ABS

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