Ok i don't understand this. This engine is totally different from the Cen Genesis Limited Edition Truck. After i broke it in the 6 tanks, and changed it to the prefered settings, it's overheating rapidly. If it's too rich, i got a problem. If it's too lean, THAT's worse. If i run it lean, the temp climes over 400 degrees in less than 10 seconds. Even with the High Speed Needle out. If i try leaning out the Low Speed needle with the High Speed Needle in too, same thing. It goes over 400 degrees immedately. If i richen the High Speed Needle and bring IN the Low Speed Needle, it does it AGAIN. If i Richen the High Speed Needle and, the Low Speed Needle, she won't start. If i mess with the Idle, well it idles fine no matter what. Here's another problem. The Fuel that goes into the Carb does NOT stay in the Carb. As soon as i give it a pull, just ONE pull, the fuel immediately escapes the Carb and back into the fuel tank. This happens rather the Low Speed Needle is in, or out. I can't seem to find that setting for the best proformance without climing over 400, like my Cen Genesis LE is. You know what's the worse part? I've been doing this now without the Body on. So i'd only imagine the situation much much worse once i start placing that on. If anyone could reply for help, that would be great. Thanks everyone. I've been at this for 2 days now, and the bones in my hand are ready to snap from pulling and pulling. Not saying i hate the pull start, in fact i rather deal with pull start than Roto Start.