if anyone can help im new to the site but im having some knocking noises coming from the engine i know they did have a a problem with the cct and mine did i had a real bad rattle in the top end i had my valves adjusted and a new cct put it the rattle cleared up but once the bike gets warm if you rev it up as soon as you let off the throottle the knock begins no matter what gear its not there as im riding or atleast i cant tell cus of the exhaust it has a dyno jet power commander and a dyno jet quick shifter im the second owner the bike has 16000 i did ride it to jacksonville tennesse over the weekend from peoria illinois it ran perfect the noise has been there since i bought it any help thanks cbr fans