Replaced the gas, replaced the carburator with a totally new one, replaced the spark plug and was careful to gap properly. I have gotten it to just barely start, and then it dies. Have removed to check spark plug, and there was a drop of oil that I cleaned snd then rechecked several times and there's nothing on it anymore. The new carburator has adjusting screws the old one didn't, so I don't know what their purpose is. Also checked gas cap...seems fine and not super tight. Any help would be greatly appreciated!