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Re: 1100 GS front Master Cylinder

The Master Cylinder on my RT started to not hold pressure.  It would slowly pull all the way back to the bar.

A rebuild kit from the local dealer with a little honing inside the cylinder took care of the problem.

I would say the stickyness is just corrosion built up inside the bore and at the pivot points.  It needs to be cleaned out.

Mine has been good ever since.

Dean Wegner
'96 R1100RT 

--- On Sun, 6/8/08, Dean Chowenhill <dchowenhill@xxxxxxxxx> wrote:

> From: Dean Chowenhill <dchowenhill@xxxxxxxxx>
> Subject: 1100 GS front Master Cylinder
> To: oilheads@xxxxxxxxx
> Date: Sunday, June 8, 2008, 7:06 PM
> My front master cylinder leaks brake fluid.  Not a
> lot,infact the amount of
> leakage is not noticeable in the sight glass.  It leaks
> when riding and I see
> drops of brake fluid in the hand guard.  If I ride for a
> long time, a small
> amount of fluid actually blows back on my right saddle bag.
>  Also, and
> probably related, occasioinaly the lever does not release
> all the way and the
> brake light stays on.  I think this is because brake fluid
> is sticky and it
> inhibits the return of the lever.
> My question is: Should I replace the Master
> Cylinder for Rebuild it?  Bleeding brakes is not a problem
> for me.
> dean