How Do You Test The Lawn Mower Ignition Coil?
The ignition coil on your lawn mower, just like the one in your car, acts as a transformer to transfer and increase voltage from the battery to the spark plug. When you start your lawn mower, the battery sends a quick charge to the magnetized coils in the ignition coil. The charge travels through the coil to the spark plug, creating a spark in the gap on the plug to ignite the fuel. Testing the ignition coil itself requires special equipment, but you can test its functioning by process of elimination. Consult the owner’s manual for your mower and follow the recommended safety precautions before proceeding. You can find manuals for most mowers on the Internet if you don’t have a copy of the manual for your mower. Remove the spark plug and insert the tip of the screwdriver into the clip that was holding the spark plug. Hold the insulated part of the screwdriver to position the metal blade 1/8 of an inch from the mower’s block or frame. Putting the screwdriver in this position simulates t
