Not pumping??

If no gas,, check fuel filter/pump, etc and all rubber hoses on the suctions side of the pump back to the tankfor kinks,,cracks, or loose connections,, somewhere it can suck air... take the gas cap off , listening for suction, ie plugged vent.,,

I'm currently running it off a gas can. Fuel filter, pump, and rubber lines are all new. The ignition system is more than likely 20+ years old. So I'm guessing spark is at fault.