Bought this rig a few weeks ago was told it had a warped head, the head was fixed put a new gasket set and piston and rings. starts supper easy and will run so so for a little while and then it floods out, I am using pre mix gas instead of the oil injection due to the previous owner saying he thinks that is how the damage was done anyway when It runs it smoke a lot and I know it’s a 2 stroke and will but when I checked counterbalance fluid it was creamy as well as when it died I pulled the plug and it had the same creamy residue on it I milled the head myself and did a visual inspection for cracks just curious as to if there is a way I can check to see what and where the leak is coming from possibly with compressed air ??