Have got my K1sport on the road, and using it daily. Have noticed cluncking noise when changing up the box, usually from 1st into 2nd and sometimes 3rd. It usually happens when the engine is hot, must admit i've been thrashing it a bit! If I keep the revs down and the gear changes slower, its a bit more smoother. Doesn't seem to happen when going down the box as much, i have had a look inside the clutch and the plates seem a bit worn and the clutch outer drum is rocking a bit, from side to side. The clutch centre has a bit of end float on it, but it sounds fairly quite when in operation. I don't want to bore everybody with clutch talk as there is a lot on the forum already, just wondering if this could be the cause of the clunkiness. Apart from that the bike is flying, all I have to do now is learn to ride it!

Thanks again,
Paul