Question about 2007 Buell Lightning CityX XB9SX

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Front Brake Fluid Leak

I am still in the break in period of a XB9SX (less than 100 miles) and I noticed that my front brake line is leaking from the cupling that brings the fluid from the reservoir down to the wheel. Has anyone experienced this? Is there a quick fix or should I take it to have the dealer took at it?

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Go to the dealer...that would still be in warranty.

Posted on Nov 10, 2008

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I have read and re-read your problem and I keep going back to the "spongy" feel, which strongly suggests air in the lines.
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Even the smallest leak will allow air to be introduced.
If you are absolutely certain that you have no air in the lines, the most likely problem is one or both caliper pistons are worn and allowing fluid to leak by under pressure.
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