In an ATV, the magneto is typically located behind the flywheel. It consists of a permanent magnet, a coil of wire, and a pole piece. The permanent magnet creates a magnetic field that passes through the coil of wire. As the flywheel rotates, it causes the magnetic field to move past the coil of wire, which induces a voltage in the wire. The voltage produced by the magneto is then used to power the ATV's electrical system.
Magnetos are a reliable and efficient way to generate electricity. They are also relatively simple to maintain. However, magnetos can be expensive to replace if they are damaged.