Do you mean the exhausts are actually full of fuel or do you just have wet pipe ends which drip a few spots of black 2T jizz?

My bike has always had wet pipe ends after a run and if you hold your hand in front of the exhaust whilst the engine ticks over you get wee black spits all over it after a while. Yet it still pulls to the redline etc etc. No wheelies though...

You wouldn't happen to be bringing it to Manfeild on Saturday would you?