I installed my tensioner. No problem with the fitting even without the ring clip. No chain change yet. Did the starting noise went away? YES. No problem even after a whole night of cooling down. Did the knocking noise when hot went away? YES, but now there is more tssss tsss sound, not a knocking. It is probably the old chain. Did the engine is less noisy? Yes. More uniform "noise" all in all. However I did not much of a test since it was snowing today. I haven't change the camchain yet so probably it will be more quite after the change. Now the time for the question. It is not related to the camchain. The high pitch sond (like squeaking) which is in my engine and it is not in the newer models from 2008- ST/GT My F800 is now sounding like the 2008 from the video. It has been there from the beginning, when I bought it and I have heard 2 of those early F800 engine with the same high pitch sond. The later models (silver engine) had no high pitch sound. I came across the possibile answer on on some forum that this is a sound of water pump drive. Someone said that the early models had steel sprocket on the camshaft, later models plastic one. Can anyone verify that statement?