I am really bad at this....

let me start by saying that I am way out of my league on this subject but I'm excited to learn.

I have a 900 series Briggs and Stratton 9.0 engine that has sat out in the weather.

I have changed the spark plug, Cleaned the carb and drained the gas tank.

I still can't get it to start and would appreciate if anyone has a list of things I could check from here.

Any help will be wonderful!!

Thanks

Phogan