I had a dealer explain "the most common tick" is caused by the automatic cam-chain tensioner. Not sure (never can tell) how much truth there is, but mabe someone will confirm/deny the possiblity. It is is true, it could be what you are experiencing.
Had my cam chain tensioner replaced at around 30K. Having heard a couple of tickers (luckily not mine), it didn't sound quite the same. Plus the fact that it seemed to more noticable from the right side of the engine where the tickers seem to be more noticable from the left side. Also, as FJRFYM stated, the noise went away as soon as the RPMs were increased, which I don't think is the case with tickers. In any event, the noise was gone as soon as the tensioner was replaced. And of course it's a much easier and less expensive repair if you have to pay for it. Luckily I have Y.E.S. which picked up the tab.
Thanks to you all for your reply.
As I told you I got a new cylinderhead in december 2005, the noice I hear now is from the right side of the engine so perhaps it is a loos cam chaft chain as yamaha told me, they mean the noise will go away after I used the bike and run it for a few miles.
To me it sounds like a money issue. When the head was replaced the job cost was covered by the YES insurance ? The cynic in me says the cam chain adjustment was reassembled / adjusted too loosely or should have been replaced as part of the head work. The dealer will no doubt welcome a second separate YES claim (if applicable) for the tensioner replacement. If it was my bike I'd give it maybe a 100miles around town up and down on the throttle and if it was still there have it back to them as soon as. Take no prisoners !
I have taken my time to break her in now with ten thousand km on her i still have not revved past 7000 and mostly never take her past six.
the engine is very smooth.
my suzuki i beat it to death spending a lot of time only on wheel.
and revving past eleven to race smaller 600's