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FJR Motorcycle Forums
Technical & Mechanical Problems
Misfire at steady cruise
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<blockquote data-quote="Fred W" data-source="post: 990583" data-attributes="member: 3828"><p>@Smerkal - Yes, all you say still sounds like "normal" to me. Installing a PCIII (or V) with a good map will smooth out the lean stumble at cruise, but the miss at idle will continue. I've also tried adding to the CO but that still doesn't ever result in a completely smooth idle.</p><p></p><p>One other "feature" that will add to the exhaust popping noise is the PAIR system. As you may already know, it intentionally injects fresh air into into the exhaust stream under certain circumstances, in an effort to get more complete exhaust vapor ignition in the cats. Most people who have aftermarket exhaust cans will remove the PAIR system and install block off plates to eliminate the (more obvious) popping. I installed the block offs when I did my first valve check (it mostly all had to come out anyway).</p></blockquote><p></p>
[QUOTE="Fred W, post: 990583, member: 3828"] @Smerkal - Yes, all you say still sounds like "normal" to me. Installing a PCIII (or V) with a good map will smooth out the lean stumble at cruise, but the miss at idle will continue. I've also tried adding to the CO but that still doesn't ever result in a completely smooth idle. One other "feature" that will add to the exhaust popping noise is the PAIR system. As you may already know, it intentionally injects fresh air into into the exhaust stream under certain circumstances, in an effort to get more complete exhaust vapor ignition in the cats. Most people who have aftermarket exhaust cans will remove the PAIR system and install block off plates to eliminate the (more obvious) popping. I installed the block offs when I did my first valve check (it mostly all had to come out anyway). [/QUOTE]
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FJR Motorcycle Forums
Technical & Mechanical Problems
Misfire at steady cruise
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