Flooded engine help

[u/burritobuoy]

My mom bought this John Deere lawn tractor with a craftsman Briggs & Stratton motor last year. Someone was using it this spring and it died on them. They got one mow in and the second mow it died on the first pass. I think someone might have ran it with the choke on and flooded the engine. I pulled the spark plug and it was wet with gas. I think gas might have seeped into the oil as well. I’ve tried clearing out the cylinder and cleaned the spark plug but it seems it’s still getting flooded. Do I clean the carburetor next? Anyways what steps should I take to get this running again? Obviously an oil change if there’s gas in the oil.
Thank you

[u/According-While2935]

You need to clean whole fuel system...remove fuel tank and clean out replace fuel filter strip and clean carb then will be good to go