Fill the fuel tank, loosen the fuel filter (with a drain pan underneath) and let the fuel run out till you see no more air bubbles, retighten the filter, open the valve at the injection pump (optional, usually works without) set throttle at half and crank till it starts, let rpms come up and smooth out. May have to repeat start once or twice. Don't crank the starter for more than 30 seconds, make sure your not overheating it.