Pull fuel line an check flow. You can blow some air in fuel line [not 200psi lol ] an recheck flow. I like to spray some brake / carb cleaner in line then a lil blast of air. If mixed fuel was sitting in tank for long time the cleaner will help break it down. Also loosen fuel cap while doing this .an you can also check your vent tube if is pinched or clogged with dirt or whatever it will not let the fuel flow correctly