GX690 muffler backfiring

[An0nymousGh0st]

GX690 stalling on throttle up

My machine stalled out of nowhere today. It cranks up no problem but once throttleing up it stalls again. Im thinking fuel issue like the filter but I should mention that I ran it with the injector on by mistake pulling air for about an hour or two before this issue. I did the oil change on the engine and pump recently but didnt do fuel filter. Im hoping that’s all it is. Any ideas?

This was the last time I had an issue related to fuel