Manuals through 2025 now available!
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LEMON is the spiritual successor to CHARM, I recommend you try it!
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Spark Plug: Description and Operation
Spark Plug View:
The
spark plugs deliver a high voltage arc to the combustion chamber to ignite the compressed air-fuel mixture.
The center electrode is insulated from the
spark plug shell by means of a porcelain insulator. The side electrode protrudes from the bottom edge of the spark plug shell. It is positioned so that there is a gap between it and the center electrode.
