Brake problems, whats wrong?

olehoi
Posts
27
Joined
1/7/2016
Location
NO
Edited Date/Time 3/24/2016 5:08pm
I had a minor crash today because i whent a little hard of the trottle out of a corner and landed on my left side.
(caliper on left side, brake handle on right side)

RMZ 250, 2013 with original brakes.

For some reason i lost my braking preasure in the front brake and i think i have an internal leakage. I will now try to deskribe it and maybe you can help me out:

No fluid is leaving the system. I can build up preasure if i pump the brake but as i sqees it, the preasure disapairs. When im pressing the brake many times in a row it can build up preasure and lose it or just have no preasure at all.

I have bleeded the system, so that is not the problem. I lost the first training of the season beause of this, so im pretty frustrated hehe. Thank you very much for reading!
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mx836
Posts
5577
Joined
4/2/2008
Location
;, BF
3/23/2016 6:48pm
If there are no leaks and they are bled as you have said, it sounds like you may need to rebuild the master.
RussB
Posts
1026
Joined
7/12/2014
Location
GB
3/24/2016 1:09am
As above, get a master cylinder rebuild kit. Sounds like one of the seals has gone and is causing the issues you describe, quite common and happened to me a few times over the years
3/24/2016 5:08pm
Does it lose pressure when stationary or while riding? I'm thinking a bent disc is pushing the piston back

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