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FJR Motorcycle Forums
Technical & Mechanical Problems
Time to replace the ignition switch on Frankenbike
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<blockquote data-quote="Brodie" data-source="post: 1376560" data-attributes="member: 3372"><p>Baz</p><p></p><p>Contact cleaner might work temporarily, however the ignition switch is showing classic symptoms of heat damage to the plastic component which carries the spring loaded contacts which complete the electrical circuit when the key is rotated to the on position.</p><p></p><p>The good news is that the switch can be opened up serviced, however the root cause of too many amps flowing across a single pair of contacts is still there. The official Yamaha recall switch addresses that by doubling the amount of contacts in play thereby splitting the load between them and reducing the effect of heat generated resistance on this assembly.</p><p></p><p>My suggestion is to get the recall ignition switch for the 2nd Gen. FJR; it is a direct swap for the 1st Gen. FJR. The color of the small plastic connector may be different, I believe blue for Gen 1 - red for Gen 2, but the actual functions are the same. This is a 2 pole single throw switch with a lock attached to it. A pair of thin wires are switched on and off which kills the engine, and a pair of thick wires are switched on and off which carries upwards of 50 amps of power.</p><p></p><p>When you address the root problem by either buying the recall switch, or fixing the existing one by opening it up and indexing the plastic component which contains the spring loaded contacts 180 degrees, then you can successfully add an additional switch relay to the ignition circuit such as the one I used to build. If you are truly the cheap bastage as you say you are, and are handy with a drill and small easy-outs, try servicing the existing switch. Building an Ignition Switch Relay Harness can be a fun project afterwards to complete the repairs.</p><p></p><p>JMHO</p><p></p><p>Brodie</p><p></p><p><img class="smilie smilie--emoji" loading="lazy" alt="😋" title="Face savoring food :yum:" src="https://cdn.jsdelivr.net/joypixels/assets/8.0/png/unicode/64/1f60b.png" data-shortname=":yum:" /></p></blockquote><p></p>
[QUOTE="Brodie, post: 1376560, member: 3372"] Baz Contact cleaner might work temporarily, however the ignition switch is showing classic symptoms of heat damage to the plastic component which carries the spring loaded contacts which complete the electrical circuit when the key is rotated to the on position. The good news is that the switch can be opened up serviced, however the root cause of too many amps flowing across a single pair of contacts is still there. The official Yamaha recall switch addresses that by doubling the amount of contacts in play thereby splitting the load between them and reducing the effect of heat generated resistance on this assembly. My suggestion is to get the recall ignition switch for the 2nd Gen. FJR; it is a direct swap for the 1st Gen. FJR. The color of the small plastic connector may be different, I believe blue for Gen 1 - red for Gen 2, but the actual functions are the same. This is a 2 pole single throw switch with a lock attached to it. A pair of thin wires are switched on and off which kills the engine, and a pair of thick wires are switched on and off which carries upwards of 50 amps of power. When you address the root problem by either buying the recall switch, or fixing the existing one by opening it up and indexing the plastic component which contains the spring loaded contacts 180 degrees, then you can successfully add an additional switch relay to the ignition circuit such as the one I used to build. If you are truly the cheap bastage as you say you are, and are handy with a drill and small easy-outs, try servicing the existing switch. Building an Ignition Switch Relay Harness can be a fun project afterwards to complete the repairs. JMHO Brodie 😋 [/QUOTE]
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Technical & Mechanical Problems
Time to replace the ignition switch on Frankenbike
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