My bike sometimes make the ususal horrible noise on start up and for 2sec until the camchain tensioer is pressurized.
Ok, so im landed on not to change the cam or the oilpump chain, or adjust the oilpumpchain, but change my camchain tensioer with a "third part" and manualy one!
2005 K1200S is a rattlin.
Now it seems that the cam chain tensioner is a common solution. But the guides rails may be the culprit then there is a plastic cam chain guide that fits over the sprocket. Do not want to disassemble until parts are in hand.
Always a pain when located in a non BMW...