A healthy spark plug should have a light tan color on the electrode; a black, sooty plug indicates a rich fuel mixture or oil leak, while a white, blistered plug suggests the engine is running too hot. Inspecting the Spark Plug Diagnosing ignition problems is straightforward and requires only a few tools.
Troubleshooting Spark Plug Issues to Start Your Lawnmower
This is a frequent issue after the winter storage period, as corrosion can build up on the spark plug wire or the electrode itself. Stale Gas and the Carburetor Old fuel is the single most common cause of a hard-starting engine.
An engine requires three things to run: fuel, compression, and spark. First, disconnect the spark plug wire and remove the plug.
Troubleshooting Spark Plug Issues for a Lawnmower That Won't Start
A machine that refuses to start is more than an inconvenience; it is a disruption to your routine and the health of your lawn. Inspect the recoil mechanism; if the cord snaps or slips off the pulley, it will need to be rewound or replaced to generate the necessary force to turn the flywheel.
More About Why is my lawnmower not starting
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