BMW R1200RT/R1250RT Forum

2010 1200RT. Getting that startup clacking sound, definitely from the left side, enough so I need to replace that tensioner. Upon unscrewing the left side tensioner from the engine case, I found I can't angle it in any way to remove it. The front suspension pivot, just above where the tensioner is located, appears to be in the way. I spent some time fiddling without success. Anyone provide me with some tech assistance, I'd appreciate it. The tensioner has a 15mm head.

There is a procedure in the Haynes Manual which describes removal of the Tensioners. (Engine in The Frame) Also there are some videos on Utube, unfortunately not for a Camhead although the general procedure will be the same, ie displacement of the Left Throttle Body which I presume you will have done ?.
Do you intend replacement with a standard BMW Tensioner or an "After Market" upgraded item ?.

Nevermind. I'm a clown. Finished the other seasonal maintenance issues, and dove back into the tensioner. All I needed was a slim screwdriver to give a bit more leverage to get out the original tensioner. The spring was noticeably shorter than the spring of the new tensioner. Engine starts clack free, and idle is quieter.

It will be interesting to know what mileage your bike has covered and did you fit an "after market" tensioner or the BMW one. If it is the BMW item what is the part number. (Is it different to the one you have replaced ?) Also I was under the impression that the the Twin Cam engine has an up-dated Tensioner which was supposed to eliminate the Cold Start racket. Having said that my own 2011 Twin Cam can be noisy for the first few minutes especially if ridden straight off. I now let it idle for a couple of minutes and that seems to do the trick.