I just bought a 01 yz 426 that is super clean and well taken care of. However it spit and popped alot with the choke off. So i took the carb off and cleaned the whole thing jets, needle, floats. So I started it up and seems to be a little bit better but now when its idleing its dumping alot of antifreeze and the crank case vent hose coming out of the head is dumping oil also. Is this normal overheating? I've heard that they overheat fast, but the oil seems to worry me. Any feed back would be greatly apprecaited.