Have not posted here in a while, not because I have been snorting Ajax off Whores arseholes worst luck.

If that were my bike, I'd be definitely changing those out for new ones while you have the cam chest open. IMO not worth the risk of then disintegrating mid ride. 

They look like the later hydraulic tensioners that were the "fix" for the spring loaded ones. Neither of them were an ideal solution. Good job you changed them :-)

Cheers for that FC. I don't have quite as many k's on my bike but I could have been more diligent with the oil changes over the years. 

The hydraulic tensioners pictured present as typical wear for the k's, however, as the rollers come into contact with the tensioner that slows down wear considerably, I'd still change them if I was in there though, shame the cranks are so hit and miss, gear drive eliminates plastic from the engines diet.

Yeah, I agree. 

They look ok for the kms the bikes travelled.

Took the cam cover off for a look.

There is only those 2 for the cams, your inner looks pretty worn as you say, best get it done soon.

Beags, Usually I would have had a crack at changing mine myself but just had too much other stuff to do.

I've done them twice. Not overly complicated. Definitely want a manual in my view though. No specialty tools required from memory. If you are changing the inner cam bearings you need some kind of bearing puller. There are specialty tools available to remove and install these bearings. Bearings in the cam plate need to be pressed out and in if you are changing them. The 5 hours mentioned by Far Canal is for a professional - I'm pretty slow - and prone to overthinking things - and it takes me a lot longer than this :-)

Thanks for the information fellas.

Beages I don't want to sound like an alarmist here, however I want you to look really carefully at your first picture, notice the chain to pad relationship front and rear of that pad, specifically noting the pads thickness in relation to how it sits on the chain and material thickness to the carrier.

Adding to Hilly's last comment - in my limited experience, the rear tensioner wears more quickly than the front one. 

I have decided to replace the tensioners with stock ones and fit the adjustable pushrods.  

My opinion only, don't go any less quality than these, smith bros are the best apparently, I've used lots of the HD ones, currently using S&S, these Cyco are supposed to be on par with S&S, thread on HTT were one bloke says he uses them on mild builds with no issues.