MULTIQUIP GA-Series Service Manual page 25

A spark plug directs a high voltage charge to the spark gap to ignite the charge in the combustion
chamber
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Spark plug: electric part generating sparks to ignite an internal combustion engine.

Ceramic insulator: pottery support for the parts that conduct electricity.
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Terminal: place where a current-conducting wire is attached.
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Spline: hollow channel.
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Resistance: device that controls the strength of the current.
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Ground electrode: current device that unites the electrodes.
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Spark plug gap: space separating the current conductors.
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Center electrode: central current conductor.
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Gasket: spot where two part join together.
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Spark plug body: metal part of the spark plug.
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Hex nut: hexagonal piece of metal used to screw in a spark plug.
S P A R
S P A R
Multiquip Inc. ◦ GA Series Generators ◦ Manual No. GAGENSM
K P L U G S
K P L U G S