07 Boulevard M50..sat for about 1 yr. parked it with a full tank to prevent tank corrosion. Battery went bad so i bought new, good battery. tried to start and it only cranks, no fire. starting fluid will let it run for a sec. i can hear the pump run in tank. pulled tank off and had gas in the line. pulled injector and gave it 12 volts, it opened and i can blow through it. any ideas on what and how to test?