Ok, so it wasnt 2 hours but got her stripped down, nice and steady.
When I took the cover off the first things I checked were the lifter and the pushrod, both look tip top to me.
Then, took the clutch apart, removing all the steels and friction plates in order, stacking them so I knew which way round they were etc.
Starting from the back (furthest into clutch, I noticed a build up of back deposits on the friction plates and also on the steels, see below. These deposits were stuck to the plates.
On the steels, they were more smudged across the plates but forgot to take pics.
So I am cleaning them and reassembling in order (coating with engine oil as I go) when I get to the 4th friction plate from the front and find this! the edges have all sort of broken up, it is the only one like it.
Here is the weird thing. From this plate towards the back, the friction plates all had deposits on them, from this plate forward they were all clean with no deposits.
These are the bits that came off it, obviously the rest of them are stuck to the other plates in smaller bits. The flip side of the defective plates is perfect as seen below.
Apart from this one friction plates, all others are perfect and cleaned up just fine.
Question, can you replace just one friction plate? A reminder the bike has done 2000 miles but is 6 years old.
I eagerly await your guidance