How does a igniter on a small engine work?

An igniter on a small engine, often a spark plug, works by generating a high-voltage electrical spark to ignite the air-fuel mixture in the combustion chamber. When the engine's ignition system sends a voltage to the spark plug, it creates a spark that jumps across the gap between the electrodes. This spark ignites the compressed fuel-air mixture, causing a rapid expansion of gases that drives the engine's piston. Proper timing and a clean spark plug are essential for efficient ignition and engine performance.