So, say ive just come off traffic lights, im in first. I smash the throttle back, to give it some wellie, get it into high revs then pull clutch in and flick up a gear. But instead it goes into neutral. I try knocking it up again, and it just crunches, like the clutch isnt in. Again, i try knocking it back into first and it crunches again, like the clutch isnt in, but it is. I let the clutch out, pull it back in and try again and it usually works. It only happens at very high revs/speeds, at normal speeds ive never had any trouble. Is it me not smashing the gear changer up hard enough, or is their a common fault there? Its a 2004 Fazer 600.