My lawn tractor will only run for 10 minutes, then stops. It will restart but not run. When the temperature outside dropped to 53, the mower ran for 30 minutes then stopped. Again I could restart but it wouldn't run. Apparently when the engine heats up, it will shut down. I let the mower sit for a half hour then it will run again and then given the outdoor temperature, run for 10 or 30 minutes. Clean gas and filter and plug and fresh oil. I thought it was a fuel issue until the temperature dropped.
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Have you checked the fuel line?
Check your spark plugs and also your filter , in case it is clogged. A weak spark plug can also start/stall your mower.
My husband says that the cooling fan may be plugged or not working. They're usually on the top. Good luck!
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