How Spark Plugs Work

What is a Spark Plug?

Spark plugs are devices that are responsible for “firing” and causing an explosion in internal combustion engines. All internal combustion engines have spark plugs, as they are a key component in the starting of the engine.

Materials:

Metal
Porcelain
Insulated Wire

How they Work:

A mixture of fuel and air are pulled into the chamber from the carburetor.
The spark plug fires at a precise time and ignites the gas mixture when it is at maximum compression in the combustion chamber. This creates the most possible power in each engine cycle.
Once the engine is running, the spark plug continues to fire at a specific timing to maintain power.