valve checks

My 2006 only has 22,000 miles on it but has had a tick for a while. It runs like a striped ass ape but has been getting louder. I presume the valves are out of spec but from what I have read, this seems a little premature. I always run premium fuel so its not pre-detonation. Does anyone have...

THIS IS A CHECK GUIDE, NO ADJUSTMENT WILL BE DONE Yamaha recommends doing valve check and adjustment if needed every 40 000 km, or 24 000 miles. Mine has nearly 29k miles, I can tell valve clearances were not yet checked on it. Our bikes have inline, liquid cooled, 4 cylinder engines with 4...