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Brake Fluid Leak

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Old Feb 7, 2018 | 12:22 PM
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Default Brake Fluid Leak

Throwing this out there to help my buddy. (and possibly me) And yes he's under full warranty. Just doing a little research while waiting to get it in the shop. My riding buddy's 2017 CVO Ultra Limited has developed a brake fluid leak. The rear master cylinder is almost empty and the leak shows up low on the right side below the master cylinder. Can't seem to see any signs of wetness around the master cylinder anywhere or the line attached to it. He had it in the shop late fall for the 10k mile service but he doesn't think anything was touched with the master cylinder. Just wondering if anyone else has developed this leak. (My CVO has 6k on it) Thanks
 
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Old Feb 7, 2018 | 12:50 PM
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My bike is older, and my leak was on the front. It was the seal at the plunger. I just rebuilt it and it was all good.
 
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Old Feb 7, 2018 | 04:07 PM
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as you say, he's under full warranty. take it in. let them deal with it.
 
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Old Feb 9, 2018 | 08:45 PM
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I had an issue with my front break MC leaking on a limited after a service. I would wipe it down good, couldn't find a leak but when I rode it it would leak. It was actually because the tech must have put the gasket on with fluid on it and it just continued to wick through the gasket? I took the cover off, cleaned and dried the gasket and cover as well as the reservoir top. Just made sure everything was absolutely clean and dry and it never leaked again. Just a thought.
 
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Old Mar 1, 2018 | 01:59 PM
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Thumbs up Follow-Up

Just a follow-up on my original post. My friends bike was in the shop and they replaced the rear brake master cylinder reservoir gasket and lid. I would have never of guessed that was the problem but so far so good.
 
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