Ok... I have a craftsman self propelled push mower. 190cc 7.0 ft lb torque... Drained the oil... Refilled til good on dipstick. Ran it for about 45 minutes. Then decked oil.. Was real hot and low. Added a bit of oil... Decked blade. Started it and walked 10 ft. Huge puff of white smoke and it shut off. Oil everywhere and air filter dripping oil. Help!!!