I'm not sure if others have made this clear, but your muffler line needs to be open when you are choking or running the engine. Air (muffler pressure) has to get into the tank to replace the fuel sucked out. The fill line needs to be capped off so the muffler pressure will stay in the tank. You needle should not be all the way out. When it gets way out you can get air leaks around the needle which will keep fuel from flowing. Try it about three turns out.