Answer to "Why did my murray lawn mower shut dowm"Check the gas is full. Check the oil level: If it's too low, fill it to the full mark. If it is over the full mark, it will saturate your spark plug and it won't start (remove some of the oil to the full mark and take out the spark plug and clean it). Check the air cleaner and ensure it is clean and not plugged up. Also ensure the spark plug wire is seated tight, and finally, replace the spark plug if it still won't start. These are easy, cheap fixes. Dave N.