A coil – also ignition coil It's an essential component of a gasoline vehicle's engine. Without a coil, there's no spark, and without a spark, there's no combustion. It may seem like a small part, but it plays a major role in keeping your engine running.
What exactly does a coil do?
The coil ensures that the low voltage from the battery (12V) is converted into a high voltage (up to 40,000 volts). This high voltage is necessary to create a spark plug strong spark to create, which ignites the fuel-air mixture in the cylinder.
Each cylinder in your engine has its own spark plug, and in modern engines often their own own coil.
How does it work?
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The ECU (engine computer) sends a signal to the coil.
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The coil builds up a magnetic field.
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This field collapses and converts low voltage into high voltage.
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That voltage goes to the spark plug, which emits a spark.
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The combustion starts – and the engine delivers power.
This process happens several times per second per cylinder, and must precisely timed and reliable are.
What if the coil is not working properly?
A defective coil can lead to:
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Poor engine running
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Stuttering or holding back
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Loss of power
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Unburned fuel in the exhaust
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Long-term engine damage
That is why it is important to use good quality ignition coils – especially with tuned engines or heavy loads.
Advice from JT Products
Bee JT Products do you find reliable coils For every type of motorcycle – standard, sporty, or tuned. We're happy to advise you on the right parts, tailored to your motorcycle and riding style.
