Short story long. Fan quit working. Had to use it at time and jumped across breaker in battery box to make fan run. Other family members used it and did not know this. They told me it cut off and had to wait to crank it and run it to get back to barn. Found milky oil when I checked. Pulled head and replaced head gasket. I can’t say if it was blown or not for sure. I let mechanic friend look at but didn’t get clear answer. Put back together and seems to be in time but is starting hard. Even had my pa in law who is a mechanic look at it with me. Like a bad starter or something. Dragging. I put battery on charge tonight, but it seems to be making some hard starting sounds. Runs good once cranked….for the minute I ran it. Good throttle response and what not. Found fan issue with broke wiring on bottom of fan relay. Oil stills looks milky after short test. Thanks for any advice!