I have an 1988 J.D. When I start it, the motor runs good, idles and revs up just fine. while running for a minute or two the motor will shut off, I can let it sit for a minute and it starts again and seems fine, only to have it shut off again. I just replaced the fuel pump and filter hoping that would cure it. I also bleed the fuel injectors, I'm thinking it might be the silinode on the injector pump? I'm thinking of draining the tank just to make sure there's no restriction.