It seems as if your engine is running extremely rich and the reason why it runs when the fuel tank is empty because it start to lean it out when there is very little to no fuel in the tank itself. Try leaning out the HSN (high speed needle) and the LSN (low speed needle) about 1/8th of a turn. Turn them clockwise and keep doing this until it start to run without the glow plug heater on it. And the other reason why it dies when you stab the throttle is also that it rich and stabbing the throttle gives it more fuel and it simple cant run with that much fuel.

You got to remember that more is not always better. Just get back to us if this works or not and if it doesnt then we will go from there.