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FJR Motorcycle Forums
Technical & Mechanical Problems
Lost Power
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<blockquote data-quote="Fred W" data-source="post: 606814" data-attributes="member: 3828"><p>That is an astute question based on the apparent correlation. As a guy that works with electrons on a regular basis, let me further the theory.</p><p></p><p>The ignition switch failures occur as a result of (apparently) excess current through the positive power supply path of (part of) the electric system of 2nd gen bikes. The melting ground wires are caused by excessive current through some of the ground wires. So, the same high current conditions that result in the switches to meltdown may be responsible for the ground spiders burning up.</p><p></p><p>However, if your question was: "Does the switch actually failing, or after failure, cause the ground blocks to burn up?" then the answer would be no. Once the switch begins to fail it actually limits current flow and would make wire melting in the ground wires less likely.</p></blockquote><p></p>
[QUOTE="Fred W, post: 606814, member: 3828"] That is an astute question based on the apparent correlation. As a guy that works with electrons on a regular basis, let me further the theory. The ignition switch failures occur as a result of (apparently) excess current through the positive power supply path of (part of) the electric system of 2nd gen bikes. The melting ground wires are caused by excessive current through some of the ground wires. So, the same high current conditions that result in the switches to meltdown may be responsible for the ground spiders burning up. However, if your question was: "Does the switch actually failing, or after failure, cause the ground blocks to burn up?" then the answer would be no. Once the switch begins to fail it actually limits current flow and would make wire melting in the ground wires less likely. [/QUOTE]
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