Small Engines (Lawn Mowers, etc.): John Deere STX38 shuts down when hot, john deere stx38, lawn tractor

Question
My lawn tractor has been shutting down after about 20-30 mins of running.  It won't start up again when I try to start it within a few hours.  It starts up again the next day (apparently when completely cool)  It is very frustrating

Answer
Hiya Mike-

Two tests-

1- Run it until it quits, pull the air filter off, squirt a small amount of gas in it and try to crank it.  If it cranks, you have a fuel pump problem.  If it dosen't- go to step two.

2- Pull the plug, ground it, crank it and look for a spark.  If no spark, you have a bad ignition module or coil.  If it has a spark- you have a valve lash problem.

Lemme know what you find!