I tore apart my 06 yz450 to the piston. it is sucking coolant somewhere somehow, the coolant is not in the oil so it is getting into the combustion chamber, it is being blown out the overflow tube as white vapor smoke. Its loosing a lot of coolant not just a bit it will be empty if i dont retop it I'm thinking its faulty gaskets, either the head gasket or the base cylinder gasket. Could this be the case??