Typically, the magneto consists of the flywheel (complete with cooling fins and magnet). Alongside the flywheel there will be a plastic encapsulated coil with 1 thick wire connection to the spark plug and 1 or 2 other thinner wires. As the flywheel spins past the coil a current is induced in the coil, which magnifies the voltage to produce a spark at the plug.
John
June 2008
Automatic Answer
We may have found other answers which could help you.
howtomendit.com for free repair help, information and advice.
Try fixfault.com to fix lawn mowers.