It could be a worn clutch hub. Will know after teardown. I know as a general rule, you are not supposed to use any lubricant on clutch hubs, but is there anything to make the clutch release better?
Did you find out what it was elefant? I have similar issues. Ran the bike without side cover and the chain bounces around. must be some friction causing it somewhere.I would assume there is the stock Atlas type actuator in there. Will check when I tear it down next month.
As the cable adjuster is almost all the way out, maybe the friction disks are worn thin??
I've narrowed it down to piston slap due to worn pistons. It has a .010 piston-to-wall clearance!Did you find out what it was elefant? I have similar issues. Ran the bike without side cover and the chain bounces around. must be some friction causing it somewhere.