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Thread: Trapped air in reservoir

  1. #1
    Join Date
    4th November 2007 - 21:36
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    Trapped air in reservoir

    So I changed my brake fluid and clutch fluid. And it feels fantastic - probably no different to how it felt before hand but it looks nicer.

    However, there is a little bubble that has formed in both the clutch and the brake reservoir viewing thingee... There is no change in the feel of the lever but it's bugging me. It wasn't there before I did the change so I must have screwed up the method somewhere.

    Can anyone shed some light on the problem? I've rebled both brake and clutch and thought I'd got rid of the brake one but... Photo of the offending bubble shown below.

    Click image for larger version. 

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    You only need two tools in life:
    Duct tape if it moves and it shouldn't.
    WD-40 if it doesn't move and it should.


    Brute force and ignorance always prevails.
    Failure comes from too little brute force, or
    too little ignorance.

  2. #2
    Join Date
    1st September 2007 - 21:01
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    Real simple ... unbolt the reservoir off the bars (without disconnecting the lines) and tilt the reservoir to an angle that that bubble rises away from that window.

    Do the same with the other.

    All the lines should be sealed and no leaks should occur.
    When life throws you a curve ... Lean into it ...

  3. #3
    Join Date
    27th March 2006 - 10:29
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    Ignore it, it is doing nothing, and will disapear with potholes etc. Actualy you may have over filled the reservoir (sp?)
    Quote Originally Posted by Albert
    Two things are infinite: the universe and human stupidity; and I'm not sure about the universe

  4. #4
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    4th November 2007 - 21:36
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    Funnily enough you're probably right about the overfilling... I initially filled it up to the casting mark but in my effort to resolve the bubble issue I have filled it above the line to see if I can stop the bubble... turns out I can not. But thanks FJRider I will do the tilt and see it go away. I was concerned I'd done something wrong and that I'd created a time bomb waiting to explode.
    You only need two tools in life:
    Duct tape if it moves and it shouldn't.
    WD-40 if it doesn't move and it should.


    Brute force and ignorance always prevails.
    Failure comes from too little brute force, or
    too little ignorance.

  5. #5
    Join Date
    27th March 2006 - 10:29
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    KTM 1190 Adv R and a bunch of dirties
    Location
    Burglary capital of Unzud
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    Don't bother even trying to get rid of the bubble. Seriously it is doing nothing nor can it cause any problems.

    When you over fill the reserviour the only problem is that when you put the lid on, the rubber hood thingie displaces fluid, that then leaks down the outside and onto your precious paint.
    Quote Originally Posted by Albert
    Two things are infinite: the universe and human stupidity; and I'm not sure about the universe

  6. #6
    Join Date
    17th February 2005 - 11:36
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    Ignore it. Clean the diaphragm, button it up.

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