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FJR Motorcycle Forums
Technical & Mechanical Problems
Throttle position sensor
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<blockquote data-quote="Bounce" data-source="post: 41527" data-attributes="member: 257"><p>One thing to consider (one possibility - in cases when the TPS test doesn't show anything wrong):</p><p></p><p>The "no load" 2500-3000 rpm surge is pretty common and has been attributed to the quirks of the EFI mapping. Some have suggested that the bike is right at the cusp between 2 parts of the map so that it's jumping back and forth between them at that range (when under no/low load).</p><p></p><p>If down shifting or accellerating out of that range resolves the problem, then look at the TBS and either the dash-enabled CO setting changes often called the Barbarian Jumper Mod.</p><p></p><p>A more eleborate mod is to install a Power Commander 3 and remap the EFI with any of the various maps available for the FJR.</p></blockquote><p></p>
[QUOTE="Bounce, post: 41527, member: 257"] One thing to consider (one possibility - in cases when the TPS test doesn't show anything wrong): The "no load" 2500-3000 rpm surge is pretty common and has been attributed to the quirks of the EFI mapping. Some have suggested that the bike is right at the cusp between 2 parts of the map so that it's jumping back and forth between them at that range (when under no/low load). If down shifting or accellerating out of that range resolves the problem, then look at the TBS and either the dash-enabled CO setting changes often called the Barbarian Jumper Mod. A more eleborate mod is to install a Power Commander 3 and remap the EFI with any of the various maps available for the FJR. [/QUOTE]
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FJR Motorcycle Forums
Technical & Mechanical Problems
Throttle position sensor
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