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CRAFTSMAN 5/8-in 4-Cycle Engine Spark Plug in the Small Engine Replacement Parts department at Lowes.com
Is it really necessary to disconnect a spark plug before working near the rotor of a lawnmower? How many times has the engine suddenly cycled once it was completely off? - Quora
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small engine - Lawn mower won't start after replacing spark plug, oil, air filter, and carburetor - Motor Vehicle Maintenance & Repair Stack Exchange
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