Riding Lawn Mower Spark Plug Not Firing

Why the spark plug won t fire on a lawn mower.

Riding lawn mower spark plug not firing.

Clean the spark plug with carburetor cleaner and allow it to dry before attempting to fire again. Check the spark plug wire for cuts. Then check at the ignition coil. When a spark jumps across the spark plug s.

You can consider an inductive ignition tester one of the most efficient tools to identify the issues regarding spark plug. Quick video on how to check for spark plug fire in any small engine or any engine for that matter. It not the lawn mower won t fire. Yes spark plugs do wear out.

Unlike automotive engines the wire to the spark plug is normally attached to the magneto and is not replaceable if you have damage to your plug wire you will probably need to replace everything. A spark plug should be changed once every year at the start of the new season. Lawn mower coils give lots of problems i replace tons of them. My riding mower doesn t have any spark.

A simple check is to remove the wire from the coil and turn the engine over and check for spark if it has spark the coil is good. How to check if lawn mower spark plug is firing with a spark plug tester a spark plug tester is a convenient and secure way to check plug ignition spark. Can a spark plug have bad spark. You can check the spark plug for spark by removing it connecting the plug wire grounding it off the engine and turning.

There is a wire connected to the coil make sure the wire is not cut or resting on the engine block causing it to ground out the coil. The plug is an. When you leave old fuel in your lawn mower it can be hard on it. The cost of a magneto is not that bad you can expect to pay 20 on push mowers to 50 on lawn tractors.

Fuel can be considered old if it s been in your mower for a month or more. A proper spark is just as critical as fuel and air when it comes to a riding mower operating efficiently.