Update:
Off and on it has slow starts just like it's a fueling problem. Removed the petcock from the bottom of the tank and flushed the tank of any contamination. The filter screen made onto the petcock valve is a very fine filter. I can see how it doesn't take much trash to plug that filter...
Did you ever diagnose the problem? My 2004 MF 471 tier 2, no cab, 2wd is doing the same thing. I purchased it new and has been trouble free. 7 years ago I was bailing hay and it died like it ran out of fuel. Put on a oem fuel pump from the dealership and it fixed it that day. This summer it has...