Brake Master Cylinder Leaks

[glider.]

There have been some posts about the cylinders leaking by the cover.

The problem with a lot of leakage situations with the master cylinders is that the cover screws are run in to tightly and compress the cover gasket under the cover causing leaks. It's important that you follow the torquing values when tightening the cover screws to avoid the leakage.

If you watch the cover gasket when tightening it with a screwdriver, it will go so far and if you tighten it more it will flatten out and that's where the leak comes from.

 

[Rayolite]

Well, The brake master cylinder on my bike leaked. The torque was set at factory. Hmmmmmmm!

 

[glider.]

I'm sure that between 2006 when you bought the bike and 2011 that the fluid level was checked more than once in that time. In order to do that they cover had to be removed.