So my 09 GSA went in for 42K mile service recently and I get a strange report from the service tech. There is a round ABS plastic doo-hicky pressed onto the the throttle body that has someting to do with the butterly action on the throttle body. Apparently mine is cracked, tech claims they all crack. Also claims half of the police fleet they service has to have the throttle bodies replaced because of this fault. I go in to check it out and sure enough, he shows me the plastic disc on the trhottle body and it has a big crack in it. Still not sure what this plastic disc does but because of this, it won't allow a correct throttle body sync according to the tech. I tell him that the idle was a little rough and my mileage was a little off and he says this is why. The bad news is my bike is an 09 with over 42K ... no more warranty and a throttle body is is $500. Yep you guessed it, the plastic doo-hicky is pressed on to the body and not a replacable part. The good news is the tech came up with another throttle body (maybe one of the police bike fixes ???) and replaced the original . WOW! The bike has transformed, I just thought a valve adjustment and throttle sync were in order as it had been running rough. All because of a crack in a plastic doo-hicky on the throttle body. Anyone else have this issue ... ever heard of this?