Yep, he is a good bloke.
Seeing you have had this issue from when you got the bike, the parts John points out need to be checked.
I have 2 parts lists for the 1100 (and early version and later with revised parts as well) which show the clutch differently depending on the engine number:
This is the earlier parts list with only upto engine number 158879 parts shown
Reading your initial post it is possible in a rebuild someone has mixed and matched the clutch parts and hence why you have this issue. I hope so as then you are on the road to having it fixed.
The test (I think) for if it is that, is take out the fibre and steel clutch plates and can you turn the crank and basket without centre turning? If not it must be those parts. If you can, well check them anyway!
Thanks
UB
