Huh... well I though for sure either the tank lines were reversed or the needle was closed off. Try this... pull the muffler presure line and carb line off and blow into the full tank... fuel squirt out? if yes then put the carb line back on and blow in to the tank again... fuel make it into the carb? if yes then your tank position or distance may be off and the engine simply can't draw the fuel from it... it no fuel made it through the crab then you have dirt or something blocking fuel flow at the carb itself... pull the carb apart and clean it out with spray carb cleaner.

John