When it has this problem is it after you have been going for a while with it in freewheel? I don't know about messing with the daisy nut, that is most for adding spring tension to the clutch. The clutch is just a bunch of small rubber pads installed in little holes in the clutch driven, I am thinking that one of the little buggers is getting sideways and touching the clutch drive. I like the early clutch handle the one they call the Russian one. It lifts the clutch the best, I like the way it works without having to push in the button. Look at the tear down an see what you think. The only other thing I can think of that would dive the bike with the clutch out would be the race of bearings that carry the large gear when disengaged, somehow they are binding. If you said it was all the time I would agree that the clutch is not lifting enough. Have fun, Dave