Try our new info resource - "Aladdin's Cave" (Main menu)Just added a separate link to Ash's Dropbox thread (shortcut)
So I pulled off the sprocket cover and checked out the front and rear sprockets and splines then moved across to the RHS.I drained the oil ready to remove the clutch cover then took off the kick-start and footrest. As I came to release the clutch cable from its abutment on the cover I found the problem. An M6 Philips screw about 30mm long (origin unknown so far) had fallen and jammed between the clutch operating lever and the casing and was stopping the lever from fully returning so the clutch was stuck partially disengaged.Since the clutch had been slipping for a while as I crawled home I decided to continue with the stripdown so that I could check the steel plates and renew the friction plates and springs.It turns out that there isn't a ball bearing in the operating system. There's a short ball ended pushrod between the internal operating lever and the spring plate.
The clutch was slipping for quite a while so the friction material may well have overheated. The plates, springs and a new gasket come as a kit from DSS for only £39 so I'm doing the lot while I'm in there. I'm also fitting a new kick-start oil seal as that was weeping slightly.