hi there, new to posting on the forums. this quad is a 05 i believe and i have a question. this thing has new piston and rings, coil, carb etc. running ams oil dominator at 32:1. this thing runs amazing for about 12-15 min. after it gets warm, it starts to lean out and die. all vent tubes are good. it'll run after it's warm choking it. im just stuck at the moment. any suggestions would be greatly apprenticed.