I have a Briggs and Stratton mower that runs for a few seconds after being primed and then stops. If I continue to press the primer button it will keep running.
I've tried to change fuels, clean carb, keep nut with the little hole, replaced spark plugs and air filter. Still no luck.
So it turns out that a few of the gaskets on the carb were stuffed (I also thought the fuel bowl was the carb originally, my bad). I bought the carb rebuild kit and replaced everything I could. The carb itself was pretty clean as well.
Here is a photo of the carb when I took it off
Mower is working awesome now. Thanks for your help!!