Starting a lawn mower with a Magnetron ignition consists of spinning the flywheel, either electronically or manually, by means of a pull-rope. The spark ignites the fuel, and the movement of the piston pushes the flywheel through another revolution, creating a self-sustaining cycle that powers the lawn mower.Click to see full answer. Considering this, how does an electronic ignition work?Electronic ignition system is the type of ignition system that uses electronic circuit,usually by transistors controlled by sensors to generate electric pulses which in turn generate better spark that can even burn the lean mixture and provide better economy and lower emission.Beside above, how a magneto ignition system works? The magneto is a self-contained generator of high voltage that provides ignition to an engine through spark plugs. The moment the contact points open, a rapid magnetic flow generates a high voltage in the secondary coil, which ignites the spark plug, thus firing the engine. Simply so, how does a Briggs coil work? When you start your lawn mower or small engine, you turn the flywheel and its magnets pass the coil (or armature). This creates a spark. Once the engine is running, the flywheel keeps rotating, the magnets keep passing the coil and the spark plug keep firing based on a specific timing.How does the ignition system work on a small engine?An ignition system in a small engine produces and delivers the high-voltage spark that ignites the fuel-air mixture to cause the combustion. Some small engines require a battery to supply electrical power and the ignition spark. Others develop the ignition spark using a magneto.