A while back I took my bike to the local raceway after it had been standing for a long time, and it wouldn't start. One of the local 'experts' decide I needed help, so reset the idle screws by counting the prescribed number of turns out from fully closed. I simply watched him do it, his intentions were good. After I found a plug spanner and a couple of plugs, I started the bike , handed my offsider the screw driver and told him to reset the idle screws until he got the miss then back off. It is not rocket science.