FAQ

What does the lawn mower spark plug do?

The spark plug ignites the fuel in the cylinder generating the power stroke in the motor.
 

What causes lawn mower spark plugs to foul?

Common causes include worn engine parts, dirty air filter, old fuel, and improperly mixed fuel. 
 

Why is the lawn mower spark plug wet?

Typically, a wet spark plug can be caused by a clogged air filter, weak ignition, and poor quality fuel.
 

How does the lawn mower spark plug work?

The spark plug receives a charge of voltage from the ignition system, sparks at the electrode, and ignites the fuel in the combustion chamber.
 

How long do mower spark plugs last?

Spark plug lifespan depends on engine and fuel conditions. Your spark plugs should be replaced at least once a year.
 

Are all lawn mower spark plugs the same?

No, all lawn mower spark plugs are not the same. Spark plugs are engine specific and there are different sizes and heat ranges (voltage requirements).
 

Are lawn mower spark plugs universal?

Lawn mower spark plugs are not universal in fit. They are specific to individual make and models.