hmm, I think it may be the regulator then, I'll have to look at replacing it. as for power, it will rev past 8000 rpm, it will pull pas 140 km/h now, couldn't do that when it was on gas. But the idle is crap, so i will check the regulator as I actually have to lift the diaphram (sp) on the mixer to let more air in to start it. opening the idle mixture screw just makes it idle rougher and try to die more.