My bike has a slight chatter in the tranny when I initially roll on the throttle at start up. Seems to be related to the RPMs, I have noticed if I rev it up a little the chatter goes away. I have an 08 with the self adjusting primary chain but wonder if it ain't working right. It seems to be getting worse so wanted some expert advice. It is intermittent as well which makes me wonder if it is related to the load on the tranny at the time of initial roll on..anyway, thanx for your help.