My guess is water in fuel.
You can verify fuel issue by removing air filter and spray a short 1 second burst of starter fluid into carburetor and promptly crank engine. If it's a no fuel in carb issue it will fire and run a few seconds until starter fluid is expended.
Disconnect fuel line at carburetor and capture sample (cup or so) while cranking engine.
Put sample in a small clear glass container. Look for an obvious horizontal line... fuel floats on water. Any sign of water and youll need to drain the tank AND carburetor bowl.
Then get fresh fuel in a clean empty container... dont use what you might have.
Comment here and I'll assist further I'd not a fuel issue.
SOURCE: lawn tractor shuts off after 20 minutes of running
How old is your ? Sounds like ignition problem,If your engine is older you would have points when the points are bad they can stick together and will result in shutdown after unit cools a little it will restart !
SOURCE: Our new to us john deere 345 tractor won't keep running
You may try blowing backwards from behind the fuel filter into the gas line. Not to much air pressure though. Make sure the gas cap is off.
SOURCE: We have a John Deere lawn mower model JS45. Just
this problem is related to the auto-snesing carburator. If you wrap the throttle cable, that runs down the left side of the mower, around the handle several times and tie wrap in place the mower will run. I had the same issue with mine. the manual is vague at best when it describes how to fix. After you wrap the cable around the handle, it will tighten the cable and the mower will run.
JV
SOURCE: How do you reset the service reminder on a John
Open the hood and you should find a yellow push button,turn the key on,then push and hold the button in for 5 seconds or until the service reminder goes out.If yours is an early model with no push button then it will go out by it's self after 5 hours are put on the hour meter.
SOURCE: John Deere ZTRAK 737 zero turn - runs rough - one plug
My idea would be to replace the coil to that plug
Jim Kite paris, il
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