Practice question

What is the general function of a CDI (Capacitor Discharge Ignition) unit in a motorcycle's ignition system?

To store electrical charge and discharge it at the correct moment to trigger the ignition coil, producing a spark at the spark plug
To store fuel for cold starting
To measure tyre pressure
To cool the engine oil

Answer: A — To store electrical charge and discharge it at the correct moment to trigger the ignition coil, producing a spark at the spark plug

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