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Discussion in 'Motorcycle Tech Talk' started by chucktx, Feb 23, 2010.

  1. chucktx

    chucktx Moderator Staff Member

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    looking for info on the new abs brake systems for harley.....replacing pads, bleeding the system, the computer that is involved in the system........thanks!
    chucktx, Feb 23, 2010
    #1
  3. chucktx

    chucktx Moderator Staff Member

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    anybody??? story goes that the new systems need "zeroing" when any work is preformed on the brakes.............
    chucktx, Feb 24, 2010
    #2
  4. sarge7

    sarge7 New Member

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    chuck - I'll check with my MOCO man tonight he just got back from a meeting in milwakee and should have something to put into the problem.
    sarge7, Feb 24, 2010
    #3
  5. chucktx

    chucktx Moderator Staff Member

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    thanks
    chucktx, Feb 24, 2010
    #4
  6. hotroadking

    hotroadking Super Moderator Staff Member

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    FWIU you will need a DT (Scan tool) to properly bleed the ABS
    the pump has to be engergized and the fluid pumped out

    It's a requirement every two years. MoCo book calls for .6 hour and the fluid...

    Checked with some others they say it's a dealer job...
    hotroadking, Feb 24, 2010
    #5
  7. chucktx

    chucktx Moderator Staff Member

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    just thinking here.......turn on the key, work the brake, add fluid until it flows clean....?
    chucktx, Feb 24, 2010
    #6
  8. hotroadking

    hotroadking Super Moderator Staff Member

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    can't because the ABS doesn't activate unless the sensor
    determines the front wheel is locked, so you have to
    get it working to get the ABS bleed.

    I'm thinking it's a dealer job as you have to hook up the Scan tool and
    it tells the brakes to purge the ABS system...
    hotroadking, Feb 25, 2010
    #7
  9. chucktx

    chucktx Moderator Staff Member

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    still thinking.....if the front wheel is not turning, and the key is on, and you squeeze the brake,,,,would that "fool" the abs system??
    chucktx, Feb 25, 2010
    #8
  10. hotroadking

    hotroadking Super Moderator Staff Member

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    I would have to check with dealers
    but from what I've read,the pump is electric
    the sensor in the brakes is looking for total lock....

    spinning wheel isn't locked...
    hotroadking, Feb 25, 2010
    #9
  11. chucktx

    chucktx Moderator Staff Member

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    i was talking about the wheel being still. as when parked.......
    chucktx, Feb 25, 2010
    #10
  12. hotroadking

    hotroadking Super Moderator Staff Member

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    hotroadking, Feb 26, 2010
    #11
  13. chucktx

    chucktx Moderator Staff Member

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    thanks hrk, i have seen that. i guess my question is what does the digital scan tool do??? in those directions it is telling me that it is checking for leaks, if i am reading that correctly. i am trying to see why we have to take our bikes to the dealer to do a simple brake job or replacement of fluid.
    chucktx, Feb 26, 2010
    #12
  14. sarge7

    sarge7 New Member

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    Chuck - talked my MOCO man -he said the reason that they recomend bringing the bike in was because most people don't have a scanner and the cost isn't something the average rider would want to put up with. Sounds a little like buying a car with ECM. Most people wouldn't know what to do even if they had the software to run the error messages.
    sarge7, Feb 26, 2010
    #13
  15. cardboard

    cardboard Well-Known Member

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    Here is some info directly from a HD mechanic.


    You bleed them just like a normal brake system, THEN go to a dealer and have them perform the ABS service on the Digital Tech computer. The comp cycles the ABS servo to bleed the manifold.
    cardboard, Feb 28, 2010
    #14
  16. fxdxriderleo

    fxdxriderleo Active Member

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    If the h-d abs works like a car, the abs doesn't function below 5 or 10 mph or the vehicle would never come to a complete stop. So trying to fool the abs by holding the lever at a standstill won't work.
    fxdxriderleo, Mar 7, 2010
    #15
  17. chucktx

    chucktx Moderator Staff Member

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    thought of that also......thanks

    guess i will just have to wait and see if i can get one to play with.....
    chucktx, Mar 7, 2010
    #16
  18. FLHTbiker

    FLHTbiker Moderator Staff Member

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    I like my ABS braking system, except on those white raised markers. You will skid on those.
    FLHTbiker, Mar 8, 2010
    #17

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