The main
parts of the electrical system are the battery, alternator, and
ignition system.
The battery is the power source of the whole vehicle.
The alternator is a recharging device that is used to maintain the
charge of the battery.
The ignition system is used to ignite the fuel
at the correct time during the Otto cycle of events.
spark plug
The purpose of the spark plug gap is to create an electric arc or spark
of high heat to ignite the air-fuel mixture in the combustion chamber
at the correct time. lf the gap is too small then the spark is not hot
enough to ignite the fuel. lf the gap is too wide, then the voltage is
not high enough to create a spark. Either condition can create an
ignition misfire, causing poor performance and high emissions.
