my 2 cycle weed eater keeps flooding out?

My weed eater is hard to start and when it does start gas spits out the air intact. I've checked the spark plug and it had gas on it. I've cleaned and replaced it and still no luck. I even tried adjusting the idle screw to the point where I took it completely out. When the Idle screw is out the weed eater will crank up and run, but when I squeeze the trigger it boggs down.