I assume it's a diesel ?
Get your self a sqeezy bottle with a bit of tube on it, remove the bleed screw from the fuel filter, fill the filter up with diesel so it runs out, take your time it will fill up slowly. Once it's full, put the bleed screw back in and crank it, should start and then the pump should fill it back up again. It will cough and splutter for a bit but once the fuel gets going should bleed itself.