The ionized gas becomes a conductor and allows the electrons to flow across the gap. Once the voltage exceeds the dielectric strength of the gases, the gases become ionized. No current can flow because the fuel and air in the gap is an insulator, but as the voltage rises further, it begins to change the structure of the gases between the electrodes. As the electrons flow from the coil, a voltage develops between the center electrode and the side electrode. The spark plug is connected to high voltage generated by an ignition coil or magneto. If it’s damaged or in bad condition, you may experience all sorts of issues. The spark plug’s job is basically the same job as it would in any other small engine.Ī spark plug is an electrical gadget that fits in the engine cylinder head, and its job is to spark the ignition of the fuel to create combustion within your engine. To know why a well-conditioned spark plug is so important to run a Lawnmower engine effectively it’s helpful to know the job of a spark plug. What Does a Spark Plug in a Lawn Mower Do? To quickly determine the condition of Your Spark Plug: Check out This Photo Chart – which illustrates all 7 Spark Plug Conditions then compare the photos to your own Spark Plug. What does a bad spark plug look like? inspecting Lawnmower Spark Plug – These may appear subtle at the start but over time they can become more and more apparent, and these signs definitely point to a bad lawn mower spark plug.
You may also experience loss of power and slower acceleration. When it’s running the engine may cut out, causing you to have to attempt to restart your lawn mower’s engine again. If you have a sit-on tractor mower the engine may not start on the first turn of the key.
Your push mower engine may stutter and take several pulls of the cord to start. Since the engine only starts due to two principles: Gas & Spark, and assuming you have filled the gas tank – it’s most likely the spark, or a lack thereof. The most common way to tell if your lawnmower spark plug is bad, is the engine being more difficult than normal to start. Replace the spark plug if the electrode is worn or damaged or bad conditions exist.
Bad spark plug symptoms how to#
How To Tell If a Lawnmower Spark plug Is Badĭetermine the Condition of Lawnmower Spark Plug using These 5 Steps: Parts of a Toilet – Toilet Tank Diagram.
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