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FJR Motorcycle Forums
Technical & Mechanical Problems
Ignition or Fuel ? Missing after bike is Hot
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<blockquote data-quote="tjgraves" data-source="post: 120270" data-attributes="member: 2673"><p>2003 FJR - 15,000 miles on it.</p><p></p><p>Bike runs fine when its cold, however once it gets hot, I feel a missfire or an ignition intermitten.</p><p></p><p>Usually starts after about 45 minute of riding. This miss seems to disapear when I rock on the throttle, or at higher RPM's it is not noticable.</p><p></p><p>I have poked around at various electrical connections, wonder if this could be one of my coils or possibly a fuel injector that is failing ?? anyone have any thoughts ??</p><p></p><p>I thought about just wholesale swaping out both coils to see if that makes a difference.</p><p></p><p>The other day I was riding ( very warm outside..- 85-90 deg) - the bike would not idle. I slowed to a stop, and the engine died.... I was able to start it up, rev the engine some, keep it running till I got home.</p><p></p><p>I feel like this is related to my problem noted above.</p><p></p><p>Could it be a vapor lock ? with fuel injection ?</p><p></p><p>This is a tough one to troubleshoot, due to the nature of it. <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite3" alt=":(" title="Frown :(" loading="lazy" data-shortname=":(" /></p></blockquote><p></p>
[QUOTE="tjgraves, post: 120270, member: 2673"] 2003 FJR - 15,000 miles on it. Bike runs fine when its cold, however once it gets hot, I feel a missfire or an ignition intermitten. Usually starts after about 45 minute of riding. This miss seems to disapear when I rock on the throttle, or at higher RPM's it is not noticable. I have poked around at various electrical connections, wonder if this could be one of my coils or possibly a fuel injector that is failing ?? anyone have any thoughts ?? I thought about just wholesale swaping out both coils to see if that makes a difference. The other day I was riding ( very warm outside..- 85-90 deg) - the bike would not idle. I slowed to a stop, and the engine died.... I was able to start it up, rev the engine some, keep it running till I got home. I feel like this is related to my problem noted above. Could it be a vapor lock ? with fuel injection ? This is a tough one to troubleshoot, due to the nature of it. :( [/QUOTE]
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FJR Motorcycle Forums
Technical & Mechanical Problems
Ignition or Fuel ? Missing after bike is Hot
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