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FJR Motorcycle Forums
Technical & Mechanical Problems
Changing plugs - how bad did I just F up?
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<blockquote data-quote="RadioHowie" data-source="post: 951646" data-attributes="member: 426"><p>From the NGK spark plug site:</p><p></p><p><strong>Q: When should I use a resistor spark plug?</strong></p><p></p><p><strong> </strong></p><p></p><p><strong>A: NGK "R" or resistor spark plugs use a 5k ohm ceramic resistor in the spark plug to suppress ignition noise generated during sparking.</strong></p><p></p><p><strong> </strong></p><p></p><p><strong>NGK strongly recommends using resistor spark plugs in any vehicle that uses on-board computer systems to monitor or control engine performance. This is because resistor spark plugs reduce electromagnetic interference with on-board electronics.</strong></p><p></p><p><strong> </strong></p><p></p><p><strong>They are also recommended on any vehicle that has other on-board electronic systems such as engine-management computers, two-way radios, GPS systems, depth finders or whenever recommended by the manufacturer.</strong></p><p></p><p><strong> </strong></p><p></p><p><strong>In fact, using a non-resistor plug in certain applications can actually cause the engine to suffer undesirable side effects such as an erratic idle, high-rpm misfire, engine run-on, power drop off at certain rpm levels and abnormal combustion.</strong></p></blockquote><p></p>
[QUOTE="RadioHowie, post: 951646, member: 426"] From the NGK spark plug site: [B]Q: When should I use a resistor spark plug?[/B] [B] [/B] [B]A: NGK "R" or resistor spark plugs use a 5k ohm ceramic resistor in the spark plug to suppress ignition noise generated during sparking.[/B] [B] [/B] [B]NGK strongly recommends using resistor spark plugs in any vehicle that uses on-board computer systems to monitor or control engine performance. This is because resistor spark plugs reduce electromagnetic interference with on-board electronics.[/B] [B] [/B] [B]They are also recommended on any vehicle that has other on-board electronic systems such as engine-management computers, two-way radios, GPS systems, depth finders or whenever recommended by the manufacturer.[/B] [B] [/B] [B]In fact, using a non-resistor plug in certain applications can actually cause the engine to suffer undesirable side effects such as an erratic idle, high-rpm misfire, engine run-on, power drop off at certain rpm levels and abnormal combustion.[/B] [/QUOTE]
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FJR Motorcycle Forums
Technical & Mechanical Problems
Changing plugs - how bad did I just F up?
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