It sounds like you might have a pluged fuel tank vent. Check the vent in the tank. Be sure it’s getting air. If not you are sucking a vacume and will not get the fuel for the engine.
Sorry for the delayed response as Ive been overwhelmed with work but this last weekend I did get an opportunity to check the kart over once again and I took your advice and rechecked the fuel vent….it was plugged indeed. Cleared it out and took it out and it ran perfect the entire day. Thanks again for the quick response and the helpful advice.