What is spark plug gap
Spark plug gap refers to the amount of separation between the center electrode of the plug and the bent tang at the bottom of the plug. Too small a gap and you get a weak spark. Too wide a gap and the plug may not fire every time. Most bikes today have CDI (Capacitor Discharge Ignition ). CDI produces a strong spark and works best with a gap of .35 to .45.
If you're replacing the spark plugs in your car
engine, you'll need to set the gap before reseating the
spark plug. The gap is the distance electricity arcs between the ground
electrode and center electrode. The gap must be set correctly to ensure
maximum performance. Here's how to set the gap of a spark plug.
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