This "stuck clutch" thing has been one of my pet peeves for quite awhile. There's something going on here, and I'm developing strong suspicions about our modern oil formulations. Back in the day, we dealt with the occasional stuck clutch, but something's different now.
Noticed during my numerous clutch pulls, and noticed also on some used clutchpacks that I've ordered, there's a strange "stickiness" on the clutch plates. It feels like scotch tape. Just plain ol' sticky. And, it doesn't just simply wash off with solvent. I've had to resort to at least some scrubbing of the plates to get this stickiness off.
After the cleanup and reinstallation, the clutch works great, releases fine. But, after a period, I can sense this stickiness returning. That's when I decided to try an experiment:
http://www.xs650.com/threads/yamaha-xs650-experimental-clutch.47498/
http://www.xs650.com/threads/yamaha-xs650-experimental-clutch-version-2-0.50189/
The "stuck clutch" phenomenon is completely gone now.
I still think it has something to do with the oil.
I hadn't ridden the bike for over a week, and wanted to video this "release" feature of the experimental clutch. So, videoed today, here is the first kickthru and first clutch pull after a prolonged, several day non-use.
Edit: Good grief, I'm muttering again, and flopping about with the passenger peg. Can't even hear me explaining when I'm pulling the clutch lever. But, you should see that the kicker swings free enough to cycle it by hand.
Probably should try to wake up a little more after a nap, speak louder, get gggGary over here to direct the action.
At least my pants are on frontwise...