Parts and equipment for motorcycles, quads, scooters and bicycles

Ignition coil

Ignition coil

Essential for the proper functioning of your two-wheeler or quad, the ignition coil is a key part of the ignition system has a crucial role in starting and overall engine performance. Understanding how it works in detail, being able to detect signs of failure, and knowing how to replace it are imperative for any two-wheeler and quad enthusiast.

Operation and role

For any vehicle owner, understanding the ignition coil is essential for the maintenance and optimization of their two-wheeler or quad. This part gives your vehicle efficient and long-lasting starting power.

It is a component of a vehicle's ignition system. Its main function is to generate high electrical voltage, essential for the spark plug. This voltage causes the spark plug to spark, allowing the fuel-air mixture to ignite in the engine. The ignition coil is therefore essential for the proper functioning of the engine.

It works by transforming the vehicle's battery voltage (12 volts) into the high voltage (up to 30000 volts) needed to produce the spark at the spark plug. This process of voltage transformation is called the induction effect. Without the coil, the battery voltage would not be sufficient to generate the spark to the spark plug, making it impossible to start the engine.

A coil operates in two stages.

- the accumulation phase: the energy stored in the low voltage winder until the quantity of electricity accumulated is optimum.

- the restitution phase: the breaker opens the primary circuit and then creates a high voltage current in the restitution winder par the physical phenomenon of electromagnetic induction.

The different types

There are several types of ignition coils, each with their own characteristics and functionality. The choice of the ideal coil depends, among other things, on the type of engine of the vehicle.

Classic reels

Called canister ignition coils, conventional ignition coils are the oldest. Despite their aging technology, they are still used on certain vehicle models. They consist of an iron core surrounded by two coils of wire, the primary coil and the secondary coil. When current passes through the primary coil, it generates a magnetic field which, in turn, creates a high voltage in the secondary coil.

Modern reels

Called multiplexed spark coils or twin spark coils, these are improved versions of conventional coils. They are designed to produce more powerful sparks and to minimize failures related to overheating. They thus allow better engine performance and a longer lifespan of the ignition coil.

How to identify a fault on the coil?

Signs of failure

The most common signs of coil failure include: difficulty starting the engine, loss of vehicle power, excessive fuel consumption, misfiring, and excessive engine vibration. If you are experiencing one or more of these issues with your vehicle, it is recommended that you check the condition of your coil.

If your vehicle has multiple coils (one par cylinder), all it takes is a fault on a coil for you to experience power losses, and for the motor to operate par jerks.

Causes of coil failure

A spark plug Dirty or worn can increase the coil output voltage and cause a short circuit, resulting in coil failure.

A damaged wire, contact fault or poor electrical connection can cause problems with the ignition coil.

If the ignition coil is exposed to extremely high or low temperatures, the coil may suffer damage.

Leaking fluids such as oil, water or other liquids can damage the ignition infiltration.

Consequences of a defect

A defective ignition coil can have serious consequences on the operation of your vehicle. Not only can it make your vehicle difficult to start, but it can also cause loss of power and excessive fuel consumption. Additionally, a faulty coil can damage other engine components, such as the spark plugs and catalyst. Par Therefore, it is imperative to replace a faulty coil as soon as possible to avoid other, more serious problems. The coil is an electrical component that does not allow irregular operation. Either the coil works or it doesn't, there are no half measures.

Test a coil

Test method

Testing a coil is a relatively simple process that can help you identify any faults. To do this, you need a multimeter. First, disconnect the ignition coil from the igniter. Then set the multimeter to resistance measurement mode (Ohm). Then measure the resistance between the primary terminals of the coil (where the coil connects to the igniter). The resistance value obtained must be in accordance with the manufacturer's specifications. If it does not, this indicates a faulty ignition coil.

Results interpretation

If the measured resistance is greater or less than the specified resistance range par manufacturer, the coil is probably defective and needs to be replaced. Par However, even if a coil passes the resistance test, it does not necessarily mean that it is in good condition. Indeed, a coil can have incorrect resistance criteria while still having correct conductance. In this case, it may be necessary to test it dynamically, that is, by observing its behavior when subjected to a load.


When should it be replaced?

There is no fixed lifespan for a coil and the frequency of replacement depends on several factors such as the type of coil, the general condition of the vehicle, and its usage. However, it is generally recommended to replace the ignition coil every 100 to 000 kilometers. Of course, if you experience problems such as difficulty starting the engine, loss of power, or excessive fuel consumption, it is recommended to check the condition of your ignition coil, regardless of the distance traveled.

Steps to Replace an Ignition Coil

Struggling every day with a vehicle that has trouble starting can be not only frustrating but also damaging to your engine in the long run. Replacing a faulty coil may seem complicated, but with a little patience and the right instructions, it's within the reach of amateur mechanics. You need to disconnect the battery, then disconnect the spark plugs. Remove the old spool, and install the new spool. You must then reconnect the spark plugs and finally reconnect the battery.

Choosing a quality reel

Choosing a quality ignition coil is crucial to the proper operation and longevity of your engine. At 50 Factory, we offer a wide range of high quality ignition coils, selected from the most reputable brands on the market. Our ignition coils are designed to provide optimal performance and maximum durability.

Compatibility with different vehicle models

Whatever the model of your vehicle and its specifications, you will find the coil you need with us. They are compatible with a wide variety of models of scooters, motorcycles, mopeds and quads.

Coil Maintenance

Tips for extending life

Regular maintenance is essential to prolong its life and keep your engine running smoothly. This includes regularly checking the coil resistance, visually inspecting for signs of overheating or faulty insulation, and cleaning the coil with a clean, dry cloth.

When should it be replaced?

Generally, an ignition coil needs to be replaced when you experience difficulty starting your engine, loss of power, or excessive fuel consumption. However, even if your coil appears to be working fine, it is recommended that you check it regularly for any signs of failure before it becomes a more serious problem.

Comparison of the different types

Each type of ignition coil has its advantages and disadvantages. Classic reels, par example, are less expensive but have a shorter lifespan. Modern coils, on the other hand, are more reliable and durable, but generally cost more.

Benefits of Quality Ignition Coils

Choosing a quality reel offers many advantages. It ensures an optimal spark for efficient combustion, which results inar better engine performance. It is also more durable, reducing the need for frequent replacements. Finally, a quality ignition coil improves fuel consumption and reduces polluting emissions.

Remember that a faulty spark plug or other electrical problems cause the coil to fail, be sure to repair or replace them to avoid further coil failure.

In conclusion, choosing the appropriate ignition coil and taking care of its maintenance are essential aspects for the proper functioning and durability of your engine. Take advantage of the wide range of quality ignition coils offeredar 50 Factory, adaptable to any type of vehicle, and at competitive prices.

Remember to check the other categories of ignition parts to find all your items: suppressors and candle wire, CDI case, spark plug , ignition cover, stator and ignition rotor, turbines.