I've heard a lot on this forum about ticking issues and it normally being the ACCT but wanted to let you know that if you have a loud ticking and it does not go away with the replacement of the ACCT then you probably ought to pull the engine. I took my engine out and found that the rear upper cam chain is really loose and the cam gears are chewed up. Has anyone else had this problem? I don't understand how this could have happened unless the cams were not properly hardened, and my bike is a 2005 with 10,500 miles on it... anyway I would like to hear anyone's opinion or story if they have had this problem. It really sucks paying what I did for the bike and a year later deciding to look into this problem and it costing me around $500 in parts. It had a quiet tick when I bought it but not loud enough to worry me but anyways that's that.