I have a Case IH JX95 that appears to be running fine until a put a blade in the ground. It running without fault for 100 or so yards then the engine revs slow until the engine stops. Turning of the engine cranks for awhile, then revs to the proper rpm for 100 or so yards for the revs to slow and stop? Suggestions?? Water in the fuel? Fuel pump problems? Turbocharger?