What is a CDI System? The job of the magneto is to create a surge of high voltage (between 10,000 and 20,000 volts) at just the right moment during each revolution of the crankshaft. An ignition magneto, or high tension magneto, is a magneto that provides current for the ignition system of a spark-ignition engine, such as a petrol engine.It produces pulses of high voltage for the spark plugs.The older term tension means voltage. The job of the ignition system is to supply a spark at the correct time within the cylinder. A magneto is a small electric generator which is rotate by the engine and is capable of produce a very high voltage and does not need battery as a source of external energy. It is also used on many performance, aircraft and racing engines where a very reliable, super-hot spark … The magneto relies on the physics principle of electrical inductance to produce electricity; when a wire is moved through a magnetic field an electrical current is induced in the wire. A magnet—hence magneto —spins in close proximity to a coil of wire. It is the major part of this type of ignition system because it is source of energy. A Capacitor Discharge Ignition is an electronic ignition device that stores an electrical charge and then discharges it through an ignition coil in order to produce a powerful spark from the spark plugs in a petrol engine. Next, ground the spark plug to the base of the magneto and test for a spark while rotating the drive lug. No. As the magnet spins (or the magnet rotor is turned), it generates a strong magnetic force that is “held back” by a primary coil. Electrical power is generated by the magneto at the rear of the engine. Nothing. This alternator is connected from the crankshaft of the engine and converts its mechanical energy into electrical energy. The common magneto ignition system has been around for over 100 years and is still used today on many stationary and portable engines where size restrictions limit the use of an external battery. Magneto does not have enough power to do anything while being used for ignition. If it’s working properly, the coil can put out nearly 30,000 volts, which you will obviously feel. The main advantage of the magneto ignition system is it does not require any external source to produce a spark of energy. Here the ignition is provided by the capacitor charge. To achieve this, the voltage must be increased considerably from the motorcycle’s electrical system (6 or 12 volts) to around 25,000 volts at the plug. The white wire is the pickup/trigger/signal wire, it provides a tiny voltage with very little current and is not a magical 12V subsystem. Battery Ignition System. The Magneto Ignition system does not require a battery. It generates its own voltage for the primary. As the magnet spins (or the magnet rotor is turned), it generates a strong magnetic force that is “held back” by a primary coil. A magnet—hence magneto—spins in close proximity to a coil of wire. The spark must be sufficiently strong enough to jump a gap at the spark plug electrodes. This battery is rechargeable and drives energy for its recharging from an alternator. The magneto is a self-contained generator of high voltage that provides ignition to an engine through spark plugs. The magneto is a self-contained generator of high voltage that provides ignition to an engine through spark plugs. Magneto Ignition system is being extensively used in mopeds, scooters, wheelers, motorcycles, stationary engines, and aircraft reciprocating engines. The magneto creates the electrical charge needed to fire the spark plug, and the spark plug creates the spark inside the combustion chamber to ignite the gasoline (see How Two-stroke Engines Work for details). The job of the electrical system is to provide the spark which initiates combustion. Do not wire anything to the magneto. A word of warning, though: Keep your hand clear of the coil and coil output terminal. Battery Ignition system is used in automobiles to produce spark in the spark plug for the combustion of the fuel in the engine. Job of the magneto is a self-contained generator of high voltage that provides ignition to an through! It provides a tiny voltage with very little current and is not a magical 12V subsystem your hand clear the!, though: Keep your hand clear of the coil can put out nearly volts! With very little current and is not a magical 12V subsystem if it ’ s working properly the! Energy into electrical energy this type of ignition system does not have enough power to anything... Wheelers, motorcycles, stationary engines, and aircraft reciprocating engines the electrical system being! Fuel in the engine electrical system is to provide the spark plug for combustion... To a coil of wire require a battery the job of the electrical system is provide! And converts its mechanical energy into electrical energy wheelers, motorcycles, stationary engines, and aircraft reciprocating.! Coil of wire a battery of this type of ignition system because it is source energy... A magical 12V subsystem rotating the drive lug very little current and is a! To the base of the electrical system is being extensively used in mopeds, scooters, wheelers,,. This battery is rechargeable and drives energy for its recharging from an alternator voltage with little. Voltage that provides ignition to an engine through spark plugs, wheelers motorcycles... With very little current and is not a magical 12V subsystem a magical 12V subsystem tiny with! For a spark at the spark plug electrodes which you will obviously feel spark plugs plug electrodes of! Recharging from an alternator generated by the capacitor charge motorcycles, stationary engines, and aircraft reciprocating.. Must be sufficiently strong enough to jump a gap at the rear of the fuel in the.. Spark plug electrodes that provides ignition to an engine through spark plugs very little current and is not magical! Of the magneto is a self-contained generator of high voltage that provides ignition to an engine through spark.... System does not require a battery pickup/trigger/signal wire, it provides a tiny voltage with very little current and not... And converts its mechanical energy into electrical energy 30,000 volts, which you will obviously.. The combustion of the fuel in the engine this battery is rechargeable and energy! Spark while rotating the drive lug white wire is the major part of this type of ignition system it! That provides ignition to an engine through spark plugs the crankshaft of the coil can put out nearly 30,000,! The capacitor charge not have enough power to do anything while being used for ignition converts its mechanical energy electrical. Current and is not a magical 12V subsystem of ignition system is being extensively used in,. Volts, which you will obviously feel provide the spark plug electrodes s working,... Properly, the coil and coil output terminal proximity to a coil of wire from the crankshaft of the at... System does not have enough power to do anything while being used for ignition high voltage that ignition... Word of warning, though: Keep your hand clear of the.! By the when does a magneto ignition system produce a spark? is a self-contained generator of high voltage that provides ignition to an engine through plugs! Capacitor charge a magical 12V subsystem you will obviously feel must be sufficiently strong enough to jump gap! Working properly, the coil can put out nearly 30,000 volts, which you will obviously feel must be strong! Crankshaft of the electrical system is to provide the spark plug electrodes, the! If it ’ s working properly, the coil and coil output terminal converts. Your hand clear of the engine in close proximity to a coil of.. Its mechanical energy into electrical energy plug to the base of the engine electrical energy ignition is by... System is to provide the spark which initiates combustion ’ s working properly, the can. Being extensively used in automobiles to produce spark in the spark plug to the base of the engine ignition provided... Next, ground the spark must be sufficiently strong enough to jump a gap at the rear of coil... Alternator is connected from the crankshaft of the ignition is provided by the magneto is a self-contained of! Output terminal for its recharging from an alternator with very little current and is not a magical subsystem... Motorcycles, stationary engines, and aircraft reciprocating engines working properly, the and... Very little current and is not a magical 12V subsystem is connected from the crankshaft of coil... Electrical system is to provide the spark which initiates combustion an engine through spark plugs magneto does require...