make sure it has enough fuel to run. check for air in the system if there is air in system it will have to be bleed #1 YOUR FUEL PICKUP PUMP SHOULD HAVE HAND PRIMER LEVER ON IT Goto your fuel injector pump and lossen 1 or both of the bleed screws then pump the hand pump untill only fuel comes out without air. tighten bleed screws next find #1CLYLINDER AND LOSSEN 5/8 PIPE NUT SLIGHTLY tHEN PROCEED TO START ENGINE WITH STARTER With in a few turns engine should start hitting and run Retighten line going to #1 cylinder as soon as engine begains to run if this is not problem check filters for water or stopped up also could injector pump going bad