The starting system consists of the battery, cables, starter motor, flywheel ring-gear, and the ignition switch.
During starting two actions occur. The pinion of the starter motor engages with the flywheel ring gear, and the starter motor then operates to turn over, or 'crank', the engine.
The starter motor is an electric motor mounted on the engine block, and operated from the battery. It is designed to have high turning effort at low speeds.
The starter cables are the thickest on the vehicle, as a high current must be delivered to the starter motor, to turn the crankshaft from rest, and keep it turning until the engine fires, and runs on its own.
