Hi mate just joined myself a couple ov dayz ago.My mate bought a de ristriction sheet and in it it says the reed switch under the clocks is to blame for your lack of revs 7000 rpm nd over.Apparently u need to remove it from the clocks and tuck it away but DO NOT CUT THE WIRES just tuck it away.He done his and it revs to the red line.hope that helps u mate.