How does a coil work?

An ignition coil is a type of transformer (a coil) that aids in the process of igniting an internal combustion engine. The ignition coil converts 12V low voltage that runs through the electrical system into high voltage. This high voltage can ignite an internal combustion engine. This is necessary to start the scooter's engine.

How do I know if my ignition coil is defective?

There are often symptoms that indicate that the ignition coil is no longer functioning properly, namely:

Poor starting of the scooter
Engine runs rough or does not idle
Poor acceleration, loss of power
Higher fuel consumption
Engine management light is on (with new E4/E5 scooters).