I am buying a NC23 next week off a lad I know and I need to restrict it as im only 33BHP. The bikes completly standard apart from a dic exhaust. I have baught the restricter washers and I want to know what jetting I should be running with this exhaust and the restricters. I am a mechanic by trade and have done a few re jets but I want to know what sizes you all think and also the pilot screw setting? Thanks all.