I have an odd problem I am hoping someone can help us out. When the machine is cold and idling, it sounds like it will miss every now and then. Under load when cold, the engine will bog right down and stall if I don't let go of any controls. The strange thing is that once the engine is warm, the machine operates flawlessly. I was about to purchase ET, but before I do maybe I am overlooking something simple. I've changed all filters, thermostat etc.
How about checking supply pump pressure.. IF u can, check it at the inj pump inlet.. or at the last filter.