wont start after stalling

check your fuel system( filters and amount of flow from tank) and look at fuel quality ( no water) it might be a good idea to get a glass jar and pull off a sample and let it sit for a min. and look at it to see if there is water in it. If your injection pump does not use engine oil pressure to lube it now would be a good time to check its oil level and oil quality. also if you have some rubber fuel lines make sure there is no cracks to let air into the fuel system.