Small Engines (Lawn Mowers, etc.): Garden Tractor engine trouble, garden tractor, tractor engine

Question
I have a Kohler 14hp engine in an Ingersall garden tractor that stops runing after about 20 minutes. After it cools down for about 1 hr it starts up again just fine. I have recently replaced the 2 valves, points & condenser and plug. The engine is about 20 years old and burns some oil. Any ideas?

Answer
Hi Dave,

You will need to determine if the problem is a lack of spark or a lack of fuel flow.  Right after it quits, remove the spark plug, reconnect the wire and lay it against the engine head.  Pull the engine over and watch for spark at the plug's electrode.  If none, test or replace the coil.

If good, then try to start while squirting fuel or starting fluid into the carb intake.  If it starts, then the carb most likely has dirt, debris or gummed fuel inside.  You will need to remove the carb, disassemble it, clean all the small internal openings and blow it out with compressed air.   Probe each and every hole with a small wire.  A carb rebuild kit wouldn't hurt either.

Let me know how you make out.
Michael