I have an 87 and keep having clutch pressure issues. If I sit with the clutch lever pulled in, it will often bleed off pressure. Of course this changes the engagement and makes the bike a bit of a pain to start off without stalling. I have rebuilt the MC and Slave three times and the inside of the piston sleeve (if that is what it is called) is shiny like a mirror with no burrs. Because the I have no leaks down below, and because the clutch fluid in the reservoir sometimes turns blackish, I'm assuming it's the perch that is the issues. Is there possibly a better rubber for the piston, or are there choices for new MCs? I
Clutch Woes
3 posts Started 9 Sep 2016 Last recovered post 10 Sep 2016 Wayback Machine snapshot 6 Jul 2017
I would suspect the rubber line is the issue. I would just replace it with a Steel braided line and call it a day. They are not that expensive and considering you rebuilt the MC and Slave this is the only part you didn't appear to have replaced/touched, it would seem logical that it's the issue.
May explain the fluid turning black quickly?
End of thread · 3 posts recovered Wayback Machine snapshot 6 Jul 2017