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FJR Motorcycle Forums
Technical & Mechanical Problems
Misfire at steady cruise
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<blockquote data-quote="road runner" data-source="post: 990140" data-attributes="member: 5116"><p>Are you sure it's not the lean serge they all have ? They are set up lean to pass emissions. If so a power commander would take care of it by putting in a richer fuel mapping.</p><p></p><p>I'm not sure, but I think if you unplug the O2 sensor the ECM will go into rich mode. If so try it and if the issue goes away it's probably the lean surge.</p><p></p><p>I'm sure someone with more knowledge will chime in.</p><p></p><p>Also dirty throttle bodies can cause some weird things.</p></blockquote><p></p>
[QUOTE="road runner, post: 990140, member: 5116"] Are you sure it's not the lean serge they all have ? They are set up lean to pass emissions. If so a power commander would take care of it by putting in a richer fuel mapping. I'm not sure, but I think if you unplug the O2 sensor the ECM will go into rich mode. If so try it and if the issue goes away it's probably the lean surge. I'm sure someone with more knowledge will chime in. Also dirty throttle bodies can cause some weird things. [/QUOTE]
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FJR Motorcycle Forums
Technical & Mechanical Problems
Misfire at steady cruise
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