i have an 04 600rr with about 3000 miles on it. I've had the bike for about a month now and have heard some engine noise for about two weeks. It sounded like a clicking at about 5k rpm so i immediately thought cct. well i changed the cct to a manual one and i guess the clicking went away but my engine is just very loud. when i got the bike it sounded very quiet, almost like brand new. does anybody have an idea why my motor is making so much noise? also the stock muffler sounds louder too and i dont think it should. please help me before something goes really wrong.