Strange thing is that the clutch isn't slipping, in fact it's quite the opposite. The clutch will engage smoothly but only until the bike gets hot, then the clutch begins to grab as if multiple plates are engaging at once. It makes the bike an absolute chore to ride and pisses me off smartly. The hotter the bike gets, the worse it grabs. Getting off the line at stop lights in first gear is unpleasant and takes a delicate touch, to put it mildly. The problem has persisted over two clutches, as I replaced the entire basket, including all plates a while ago. It's very strange and I'm not sure what to make of it.
Any ideas?