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FJR Motorcycle Forums
Technical & Mechanical Problems
Dual Platinum Spark Plugs
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<blockquote data-quote="Fred W" data-source="post: 1149578" data-attributes="member: 3828"><p>No, Slardy does have it right.</p><p></p><p>In addition to the fact that the spark is "wasted" by firing both TDC cylinders simultaneously, the one at the top of the compression stroke (good) as well as the one at the top of the exhaust stroke (wasted), the fact that a single coil is firing those 2 spark plugs means that one is absolutely firing electrons from the center iridium electrode to the side (good) and the other is firing from (plain ole') side electrode to center (not so good).</p><p></p><p>I've pointed this dichotomy out many times previously, but people merely point their fingers and laugh as they continue to waste their money on iridium spark plugs that aren't doing anything for 50% of the cylinders.</p><p></p><p>But the good news is that other than the waste of their money it isn't really hurting anything, and it makes them feel better.</p></blockquote><p></p>
[QUOTE="Fred W, post: 1149578, member: 3828"] No, Slardy does have it right. In addition to the fact that the spark is "wasted" by firing both TDC cylinders simultaneously, the one at the top of the compression stroke (good) as well as the one at the top of the exhaust stroke (wasted), the fact that a single coil is firing those 2 spark plugs means that one is absolutely firing electrons from the center iridium electrode to the side (good) and the other is firing from (plain ole') side electrode to center (not so good). I've pointed this dichotomy out many times previously, but people merely point their fingers and laugh as they continue to waste their money on iridium spark plugs that aren't doing anything for 50% of the cylinders. But the good news is that other than the waste of their money it isn't really hurting anything, and it makes them feel better. [/QUOTE]
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FJR Motorcycle Forums
Technical & Mechanical Problems
Dual Platinum Spark Plugs
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