I put the clutch in, and go to fire her up it fires , purrrrs, then dies. Then won't start. Let it sit for an hour it'll do the same thing. Its a Caterpillar diesel in a morbark 2400. I don't know much about diesel. I check the oil leval, i cracked each injector tell fuel shot out, thinking there could be air in the system. I drained the water separator thing. Thats about the extent of my ability. Any guesses or advice on what it could be?