Your bike would act as if it's running out of gas all the time. Take the line off of the valve, put a can under it to catch the gas, and turn it on. If gas flows out in a steady stream it's good, if it don't, it ain't. Don't forget the fuel tank cap, it's got a vent in it to let air in to replace the gas that goes out. If air can't get in, the gas can't get out.