anybody hear a click click noise when they are riding there 450's? it sounds like the chain is hitting the front sprocket guard or something like that. the chain isn't loose. maybe i will take the guard off and see if the noise stops.well it's either that or the valves . i'm hoping for the chain i really don't want to have to mess with the valves right now. it's made this noise since the first time i rode it. i think i heard another bike make the same noise on one of the home video's they shot but i'm not 100% certain.