Originally Posted by Ghost_Mutant
I'd call it a snug fit from what I remember. There is an O ring in there that seals up this shaft so oil does not leak out. Can you twist the shaft in one direction with the pliers? That should be easy to do after the retaining pin is removed. You might try vice grips to get a good hold, and then pull hard while turning the shaft. Should come out. If not, then perhaps the shaft has some deep wear marks in it that are getting hung up on the tensioner mechanism.
Look at this post for link (XL600R* (Inglese))
Hey, cheers for the link. I've been able to download and print it all out today... at work
Had a little garage time this evening: there are no cracks in the mounts on the frame and the tensioner shaft, tensioner, cam and cam bearings are now out and all look OK. No pics, but you've seen all this stuff before