Clutch hydraulic reservoir leak

[GG221]

https://m.youtube.com/watch?v=N_lF-k34stA

Is this a cause for concern? The cap to the reservoir is on tight. It doesn?t do it all the time, I just noticed it for the first time after washing the bike.

 

[Jacob 'Berg]

https://m.youtube.com/watch?v=N_lF-k34stA

Is this a cause for concern? The cap to the reservoir is on tight. It doesn?t do it all the time, I just noticed it for the first time after washing the bike.

Take a look at the master cylinder. There is a small weep hole in the cylinder cap to allow for expansion of the fluid in the line/cylinder. If your clutch is working OK, I wouldn't worry about it.