Didnt rejet. Didnt touch anything, I just bought this thing last week...first quad. lol. I found a nice page here http://www.thebansheezone.com/Bansheezone/AirIntake.htm
seems to tell me what i need to know. Im gonan try adjusting the screw today and if that doesnt work, then according to this website, i need to go up a size in my main jet.