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FJR Motorcycle Forums
Technical & Mechanical Problems
2016-03-31 KrZy8 Running Rough just above idle
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<blockquote data-quote="ionbeam" data-source="post: 1300571" data-attributes="member: 277"><p>Time to get serious and bring in someone that can cure your FJR's problems.</p><p></p><p><img src="https://i2.wp.com/familypracticewexford.com/wp-content/uploads/2013/02/Haiti-Witch-Dr.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p>BTW, just unplug the O2 sensor to confirm that it's not causing the problem.</p><p></p><p></p><p>So, you have replaced the high voltage ignition system, the fuel/ignition controlling computer, the fuel delivery system and an irrelevant O2 sensor yet the problem persists. You see the issue at Cyl #1 & #2, those cylinders are fired by different coils (which have been replaced) and the fuel system has been replaced. The only sensors that could affect certain cylinders would be the crank sensor and the timing sensor. If you have a stock catalytic converter it has a common phylum which mixes all the cylinders exhaust together so what you feel as exhaust flow out the tail pipes isn't related to right/left exhaust headers. There is even a balancer cross over pipe between Cyl #2 & #3 (at least on the gen 1). About the only thing left to cause the running issue is a mechanic failure, change the mechanic. <img src="https://www.fjrforum.com/forum//public/style_emoticons/default/wink.png" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p>When you changed the throttle bodies your FJR ran normal for a while. You touched/moved/disturbed something in that process. Since the issue went away and the exact same symptom came back it is highly unlikely that you have had the same failure caused by two entirely different assemblies. Perhaps you have killed two different assemblies the same way causing them to fail the same way. Or, you caused the symptoms to go away by 'messing' with stuff and it has just jostled back out of alignment with the cosmos.</p></blockquote><p></p>
[QUOTE="ionbeam, post: 1300571, member: 277"] Time to get serious and bring in someone that can cure your FJR's problems. [IMG]https://i2.wp.com/familypracticewexford.com/wp-content/uploads/2013/02/Haiti-Witch-Dr.jpg[/IMG] BTW, just unplug the O2 sensor to confirm that it's not causing the problem. So, you have replaced the high voltage ignition system, the fuel/ignition controlling computer, the fuel delivery system and an irrelevant O2 sensor yet the problem persists. You see the issue at Cyl #1 & #2, those cylinders are fired by different coils (which have been replaced) and the fuel system has been replaced. The only sensors that could affect certain cylinders would be the crank sensor and the timing sensor. If you have a stock catalytic converter it has a common phylum which mixes all the cylinders exhaust together so what you feel as exhaust flow out the tail pipes isn't related to right/left exhaust headers. There is even a balancer cross over pipe between Cyl #2 & #3 (at least on the gen 1). About the only thing left to cause the running issue is a mechanic failure, change the mechanic. [IMG]https://www.fjrforum.com/forum//public/style_emoticons/default/wink.png[/IMG] When you changed the throttle bodies your FJR ran normal for a while. You touched/moved/disturbed something in that process. Since the issue went away and the exact same symptom came back it is highly unlikely that you have had the same failure caused by two entirely different assemblies. Perhaps you have killed two different assemblies the same way causing them to fail the same way. Or, you caused the symptoms to go away by 'messing' with stuff and it has just jostled back out of alignment with the cosmos. [/QUOTE]
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FJR Motorcycle Forums
Technical & Mechanical Problems
2016-03-31 KrZy8 Running Rough just above idle
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