Sounds like fuel starvation but, I have new fuel pump, clean tank screen, Gas Cap is good, rebuilt carb, new plug, float level I think is good.. See video and please advise.. Starts easy, idles great, dies on throttle…If I cover the air filter side of the carb have way, runs better on throottle….Sounds lean to me.

Fuel mixture screw is at 2 1/2 turns.