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Rear Brakes have to be pumped to work

Discussion in 'Motorcycle Tech Talk' started by Razor, Aug 25, 2020.

  1. Razor

    Razor Member

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    I have a 2010 FLSTC. All of a sudden I lost rear brake power. The pedal goes the hole way to the bottom with very slight brake power. If I release and press again then pressure builds up and I have some brakes. I have no leaks anywhere and I changed the pads about 3,000 miles ago. Any advice on troubleshooting? I don't know how air could have got in the lines with no leaks.
    Razor, Aug 25, 2020
    #1
  3. hotroadking

    hotroadking Super Moderator Staff Member

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    Do you have ABS, that could be the culprit,

    This is also common with a warped rotor,
    if it's warped bad enough it will hit the caliper
    and heat it up while riding, boil the fluid and
    you'll loose pedal.

    Check rear rotor, check fluid levels and bleed
    you might need a MityVac bleeder tool, Harbor
    Freight, Northern Tool, any car parts place sells them.
    hotroadking, Aug 26, 2020
    #2
  4. Razor

    Razor Member

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    Thanks for the advice. I will try it.
    Razor, Sep 2, 2020
    #3

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