Very recently I have been hearing a new (I think) sound when I roll off the throttle of my TE630 at speed. The best I can describe it is a "tink tink" right after shutting the throttle from speed. It's just a couple of somewhat metallic slaps and that's all. It won't do it when at a stop and reving the engine. I first thought it might be a little back-fire, or some exhaust slipping by the FMF header joints, but nothing shows there. The bike has 8000 some odd miles so is not due for cam chain replacement for a while. Maybe the tensioner isn't doing it's job? Not cam chain at all? Any ideas?
Check the automatic cam chain tensioner. On the 610, once you hit 10 clicks out, you should change your cam chain. This may occur anywhere from 6,000-15,000 miles. I am assuming the 630 has the same cam chain tensioner as the 610. The number of clicks indicates how much your cam chain has stretched. They start at about 5-6 clicks, and then need to be replaced around 10 clicks.
The 630 has a different tensioner I think, but I will try to check it out. I think I read that you have to pull the tensioner to see how far out it is. Maybe someone has done it?
Could definitely be that, and the thought crossed my mind. I will check the chain slack and see what happens. Do the simple stuff first!
notice the exact same issue with my 630.. check to make sure the bearings are still good in the bottom roller of the chain guide bracket and that it is still turning.
I you end up pulling the CCT, be aware that it's automatic. You have to hold the adjustment on it with a screwdriver as you pull it in order to see how far it's gone. I'm with DYNOBOB, drive chain/guide noise is my guess.
