No gas to spark plug - craftsman 32cc Craftsman Weedwacker

I read the suggestions you folks posted concerning another Sears weedwacker but it gave me no ideas. Here is what I have done. I rebuilt the carburetor, passed carburetor cleaner and air through the carburetor, changed the plug, cleaned the air filter, have clean fuel getting to the carburetor. I also changed the primer bulb. Have primed the bulb numerous times and note that gas is getting to both sides of the carburetor. I also replaced the carburetor to cylinder gasket thinking that air may be leaking by the gasket. I've all the above and still have no gas getting to the spark plug. Would appreciate very much your wisdom.