Just got my carburetor back & installed but now I am not getting any fuel to it. When I was bumping the engine over with no sparkplugs I was getting all kinds of fuel coming out. Actually had to stuff a 3/8" extension in the hose to keep it from going all over the place. Unscrewed the fuel filter & filled the cup/cover with fuel thinking maybe I need to prime it. Pulled the manual valve off that is right before the filter. It is working properly. While having that off I noticed the fuel tank is full & no fuel is coming out of the tank. Shouldn't I be getting all kinds of fuel pouring out? Manual says there is an anti-siphon valve somewhere. Is that the manual valve I previously mentioned, or is there another one in the bottom of the fuel tank? Just for shits & giggles I pushed compressed air down the fuel line & could hear air going into the fuel tank. Am I missing something here?