Tractor Repair: BX2200 looses power, kubota bx2200, water in the fuel

Question
I have a Kubota BX2200 that starts perfect and runs perfect for about 15 min. then it will gradually loose power and grey exhaust will appear. I think I have read on the internet before that it may be water in the fuel. If this is the case what do I need to do to get tractor back in tip top shape?

Answer
I really think you have something blocking your fuel. Check the filters or rep[lace them. Take of the suction line or supply line to the filter when it starts running bad and see if you have good fuel flow. you can even blow compressed air back through the line with the cap off and see if you can run longer. If water was a problem it would run crappy all the time.