Small Engines (Lawn Mowers, etc.): JOHN DEER X 585 LAWN TRACTOR, temp gauge, john deer

Question
AFTER RUNNING A WHILE THE ENGINE STARTS LOPING LOSES POWER AND WILL SHUT DOWN.
HAVE CHANGED THE PLUGS, FUEL FILTER, CHECKED ALL FLUID LEVELS IN CASE OF SENSORS.
SEEMS TO DO THIS ONCE IT GETS REALLY WARM EVEN THO THE TEMP. GAUGE
SAYS ITS OK.

Answer
BUD
A lot of times the ignition coil starts to break down after it gets hot,causing a loss of power. Try this as soon as it shuts down pull the plug wire and see if it has a spark you may have to have someone help you crank the engine while you check for spark.You should get a good spark if not change the coil out.