Clutch Vibration?

[Mhanis]

09 M1100 40,000miles. Open clutch cover. Original plates.

When starting from a dead stop in first gear I am occasionally getting a "groan" and small vibration through the foot pegs. I have been thinking that is might be my clutch finally giving up, however when I am at speed I have whacked open the throttle pretty good to see if I can detect any slipping and I cannot.

Thoughts?

Mark

[ducpainter]

It's a fairly common issue.

The steel plates have contamination embedded on the surface.

It can be rejuvenated by using a scotch brite disc and cleaning the surface of the steel discs and cleaning the burrs off the ears of the fiber discs.

When I did mine I also added a curved steel plate facing the opposite way of the factory supplied curved disc at the other end of the stack. Your local shop probably has a used one lying around from a replaced pack.

Hasn't made a sound since.

[koko64]

+1 on giving it a scrub.
I reckon clutch friction dust works like graphite powder. At least it doesn't go through the motor on a dry clutch.