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[tommyardin]

Remove the lever and grease the point where the lever pushes the master cylinder piston with something like red rubber grease, this is a common problem and often misdiagnosed as a master cylinder issue.

:agree
I use red rubber grease on anything that is likely to be affected by water, firstly it does not attack rubber and it is resistant to both water and most solvents, water eventually turns mineral grease pale in colour and frothy, like condensation does to engine oil, same principle.


I used Red Rubber on the needle bearings in the rear suspension linkages for that very reason, it does not wash out, and it's an area that get hammered by spray from the rear wheel, also on any moving parts that are vulnerable to rain/weather. Brake and clutch lever axis points included.  :thumbup