Hey guys. I currently have an 07 kawasaki zx6r. I have a little knock in the engine. Not bad. Sounded like time for a valve adjustment so thats what I did. It helped a little but now im told that I most likely need a new cam chain and tensioner. No prrblem. My question is ballpark what am I looking at spending if I bring it to a shop? And also are there any aftermarket stock replacements that are of better quality than oem? Ive been looking but cant seem to find any.Any input would help. Thanks a lot!