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FJR Motorcycle Forums
Technical & Mechanical Problems
Anatomy of Gen III Fly By Wire TPS
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<blockquote data-quote="Fred W" data-source="post: 1335487" data-attributes="member: 3828"><p>One problem with diagnosing is that the potentiometer may actually test OK under static testing, or in Diags, only to screw up with added vibration and/ or heat. I believe that ionbeam tested this one with a meter and it looked "OK" before he tore it apart. We had the advantage of knowing that this particular one was bad because replacing it fixed the bike's problem.</p><p></p><p></p><p>Yes, no doubt. Like many modern manufacturers, Yamaha didn't design nor manufacture this TPS. They buy them off the shelf, to their requirements, and then adapt the FI system to their use. Even within the Yamaha parts structure this part number is used on 3rd Gen FJRs and 2009 and later V-Max. If they are crappy you'd expect that the Vmax crowd would have become aware of it first.</p><p></p><p>Hopefully, like in the 1st Gen TPS failures, there will be an improved design TPS. Whether there is a recall or not will be determined by how wide spread the problem is. Just having a better one to put in there in its place, in the event of a failure, would be a very good thing, IMO.</p></blockquote><p></p>
[QUOTE="Fred W, post: 1335487, member: 3828"] One problem with diagnosing is that the potentiometer may actually test OK under static testing, or in Diags, only to screw up with added vibration and/ or heat. I believe that ionbeam tested this one with a meter and it looked "OK" before he tore it apart. We had the advantage of knowing that this particular one was bad because replacing it fixed the bike's problem. Yes, no doubt. Like many modern manufacturers, Yamaha didn't design nor manufacture this TPS. They buy them off the shelf, to their requirements, and then adapt the FI system to their use. Even within the Yamaha parts structure this part number is used on 3rd Gen FJRs and 2009 and later V-Max. If they are crappy you'd expect that the Vmax crowd would have become aware of it first. Hopefully, like in the 1st Gen TPS failures, there will be an improved design TPS. Whether there is a recall or not will be determined by how wide spread the problem is. Just having a better one to put in there in its place, in the event of a failure, would be a very good thing, IMO. [/QUOTE]
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FJR Motorcycle Forums
Technical & Mechanical Problems
Anatomy of Gen III Fly By Wire TPS
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