I did a search and found an old thread on removing the bearing without an engine strip wondered if anyone else has experience of this or had this bearing fail .
I first noticed the clutch being noisy with the lever in and what I can only describe as a shudder and a graunch type noise when pulling away .
Stripped the clutch found the outer bearing plates basket etc OK but there's a lot of movement on the shaft so suspect the bearing is shot its a big mutha of a bearing Any other tips on removal ?

I have never tried this,But i would not think it possible.

Yes it is possible, I managed it years ago, the engine has been faultless ever since.

I made a bearing puller out of bicycle spokes and pushed the ends through the shattered cage to extract the old unit.

New bearing then pushes in neatly and is held in place by screwed fishplate.

Make sure you remove the sump to clear all the debris and check the oil pump internals whilst you are down there.

Regards,

Dave.

Thanks Dave I put the bike in to Dynotech eccose in the capable hands of martin and Willie and got a call yesterday to inform me that they managed to remove the duff bearing by welding on a piece of tube to the bearing that enabled a puller to be used result.
They said they had seen this before on an rvf before Where the bearing completely collapsed with catastrophic results with a lock up chain snapping bending the out put shaft at the gearbox sprocket .
Haven't seen the old bearing yet but may have caught it in nick of time before total failure.

Got bike back all sorted new bearing in Place old bearing hadn't completely collapsed but inner race was badly pitted in the same manner as I've previously seen on headstock bearings .
I asked the guys if this was the result of oil starvation but they are of the opinion that failure due to a faulty batch of bearings where the case hardening was defective .