The magneto is an apparatus that generates electricity.
Magnetos are part of the ignition system in some internal combustion petrol engines and are used to provide high voltage electrical pulses which supply energy to the spark plugs. This type of ignition system consists of the magneto, a spark plug and spark plug wire.
The magneto uses electromagnetism to generate electricity. A magneto is made up of a magnet which spins around inside a coiled wire, positioned in the inner rim of the flywheel, which is connected to the spark plug by a spark plug wire. The magneto generates its own magnetic field of energy which is used to power the spark plugs in order for combustion to occur. This type of magnet is known as a permanent magnet and it provides regular waves or pulses of alternating current.
The coiled wire in the magneto can burn out and crack causing the magneto to malfunction. Replacing this part when it fails with the magneto will ensure a part that fits properly, works well and lasts longer.