So my bike has about 22,000 miles on it. I've owned the bike since it had 6000 miles and I really need to do a complete service on it (repack bearings, replace coolant, adjust valves). I checked the valves previously and one was close to needing adjusting, so I'm sure it does by now.

I was thinking about the CCTs. What is the failure scenario? That the chain stretches beyond the tensioners ability to control it? Or is there an issue with the tensioner itself?

Is there a way to verify if the chain/tensioner needs replacing or in the absence of noise, is it just done at xx,000 miles as a preventative measure?

If there is a way to verify, has anyone written up a short howto on checking and possibly on replacing. I have the service manual but always like a second source of info. Doesn't have to be on this forum, maybe there is one someone else?

The only bike I've owned with a manual tensioner of any kind was a KLR and that was externally adjustable. If one upgrades to the APE tensioners that CBRzone sells, what is the adjustment procedure, does it require pulling the covers every 3000 miles?

Tony

 

The tensioner itself has a spring failure then the "screw" slowly turns until the chain no longer has tension and jumps teeth causing grenade.

There is a test for the CCTs but it can only easily be done an the rear and the front tends to fail first anyways.

It involved removing the access bolt and putting a screwdriver down there and seeing if the screw can be tightened with the engine running, however I recall this might be a counterclockwise screw and turning it the wrong way can cause the exact thing you are trying to prevent, so double check with an expert (like Greg) before just going and doing it.

In the KB: https://www.superhawkforum.com/forum...splay.php?f=19 there is the APE conversion write up: https://www.superhawkforum.com/forum...ead.php?t=5510