In a Honda bike, the magneto is located behind the flywheel. The flywheel is a heavy metal disk that is attached to the crankshaft. As the crankshaft rotates, the flywheel spins along with it. The magneto is positioned so that the permanent magnet is close to the flywheel. As the flywheel spins, it creates a magnetic field that passes through the coil of wire. This magnetic field induces an electric current in the coil of wire, which is then used to power the spark plug.
The magneto in a Honda bike is a critical component of the engine. Without the magneto, the engine would not be able to produce a spark, and the bike would not be able to run.