Had a look at the clutch slave on my 2012 recently after being in service for 3 1/2 years and 80,000Km. I have been changing the fluid for the brakes and clutch each winter when the bike is not in use but thought I would have a look at the slave as I have had one leak on my previous bike around this mileage.
Looked a little nasty with a bit of moisture contamination inside the cylinder and signs of staining on the outside edge of the piston
Cylinder seal looked fine and is not replaceable separately without buying the whole assembly.
Gave the parts a good cleaning with brake parts cleaner, reassembled with a small amount of silicon brake grease on the inner seal and outer dust seal and back together.
A couple of tips for this job is to just break free the Allen head bolt holding the clutch fluid line to the clutch slave before unbolting the unit from the engine.
And take an old hand towel and cut a small hole in it to fit over the clutch master cylinder while filling-bleeding the unit as no matter how hard I try a few drops of brake fluid always seems to find its way onto the paintwork, which it likes to ruin.
Looked a little nasty with a bit of moisture contamination inside the cylinder and signs of staining on the outside edge of the piston
Cylinder seal looked fine and is not replaceable separately without buying the whole assembly.
Gave the parts a good cleaning with brake parts cleaner, reassembled with a small amount of silicon brake grease on the inner seal and outer dust seal and back together.
A couple of tips for this job is to just break free the Allen head bolt holding the clutch fluid line to the clutch slave before unbolting the unit from the engine.
And take an old hand towel and cut a small hole in it to fit over the clutch master cylinder while filling-bleeding the unit as no matter how hard I try a few drops of brake fluid always seems to find its way onto the paintwork, which it likes to ruin.
