juddering

Hi has any one exserianced tuono juddering at very low seed.ive checked the chain and it has a couple of tight spots when back wheel is of the ground and engine running the chain is all over the place and makes the same jerky movments as when i ride it.Could this be the problam.Thanks.

Hi just bought the tuono 04 reg and noticed when coming to a stop with clutch pulled in there's a juddering from the bike witch can be felt through the front of the bike.The clutch fluid is almost black. Any help would be great.

Gents, 2002 RSVR. Lightly ridden and kept dry. Front brake judders under hard braking so much so it's spoiling the ride. I cleaned up the (semi?) floating disc buttons some of which were sticking which reduced the judder slightly. What's the next thing to check? Many thanks Mark