Editing Spark plug
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[[Image:sparkplug.jpg|right|thumb|80px| '''Spark plug''' with single-ground [[electrode]].]] | [[Image:sparkplug.jpg|right|thumb|80px| '''Spark plug''' with single-ground [[electrode]].]] | ||
[[Image:Iridium-tipped-sparkplug.jpg|200px|thumb|right|Iridium tipped spark plug that is standard on the [[Honda VFR800]]]] | [[Image:Iridium-tipped-sparkplug.jpg|200px|thumb|right|Iridium tipped spark plug that is standard on the [[Honda VFR800]]]] | ||
A | A spark plug is an electrical device that fits into the [[cylinder]] head of some internal combustion [[engines]] and ignites compressed fuels inside of a [[combustion chamber]]. Simple in design, spark plugs consist of only five to seven parts. The design is really ingenious. Every feature of the plug performs several critical functions. For example, the ceramic insulator (the white part of the plug) not only keeps the spark from grounding out before reaching the spark gap, it prevents Resistor flashover and helps control the heat range of the plug. | ||
Spark plugs are engineered to match the engine exactly. If the plug is too short, the [[electrode]] will not be deep enough into the combustion chamber, resulting in poor idle and uneven running. If the plug is too long, the plug may be struck by the piston or valves. | Spark plugs are engineered to match the engine exactly. If the plug is too short, the [[electrode]] will not be deep enough into the combustion chamber, resulting in poor idle and uneven running. If the plug is too long, the plug may be struck by the piston or valves. | ||
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Spark plugs are often thrown away needlessly. Unless the plug is dead, the insulation cracked or the electrodes burned away, the plug can be cleaned, [[Gapping a spark plug|regapped]] and used again. | Spark plugs are often thrown away needlessly. Unless the plug is dead, the insulation cracked or the electrodes burned away, the plug can be cleaned, [[Gapping a spark plug|regapped]] and used again. | ||
[[Category:Maintenance parts]] | [[Category:Maintenance parts]] | ||
[[Category:Definitions]] | [[Category:Definitions]] | ||
[[Category:Electrical]] | [[Category:Electrical]] |