Hard to tell on the video, but I am cutting on a slope so big that I tried to sit on the fender to keep from sliding off the seat. When I did that the seat safety started to shut the engine off, so I sat on the seat and the mower backfired. She is an oil burner, so before the cut I added oil and the oil level was extra high. I don't understand the inside of an engine and how oil can leak into the cylinder, but I hope that's all that happened. The mower has worked perfect since then.Head gasket time.
Man you got the James Bond Series tractor there. Don't start pressing those buttons you don't know what they do. Might light off an anti-tank missle LOL.
You should cut that grass in different directions too. You can see you cut it the same direction every time.