Craftsman 20 hp 42 in. Deck Lawn Tractor - CA Model "smoke coming right side engine" Questions

...right side, gas leaked, oil in muffler, won't start with new plug... 12.5 B&S 38" 5 speed Poulan 960110196-PE1253LT Any thoughts, Thanks If you remove the plug(s) so that the oil all drains back ...

smoke coming off of it. It smelled hot. I let it sit for a couple of minutes and checked the oil. It was right in the middle of the good zone. I restarted it (started fine) engine seemed to be running

...smoke coming from an electrical part on the engines right side which this part is connected to a red cable. (It looks like a small black oil filter but I know its electrical) Will start slowly after ...