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  1. #1
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    FLHRCI misfire issues

    My 2004 Road King Classic has started experiencing a misfire. I'm sure its not on the ignition side but either fuel side or a sensor.

    Has anybody any steers of what to look at, I've cleaned though the fuel system, changed plugs, however its getting progressively worse. Not got cash for a shop diagnosis & the bloody bike isn't throwing any relevant error codes up!

    Subsequently I'm at a bit of a loss right now?
    Last edited by mwg; 10-03-2018 at 10:46 PM.

  2. #2
    Senior Member K9F's Avatar
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    Crank position sensor can be a known culprit. Swapping things over from front to rear cylinder can help diagnose if you haven't the money to replace.

    IF YOU GO THROUGH LIFE WITH YOUR HEAD IN THE SAND.....ALL PEOPLE WILL SEE IS AN ARSE!!
    TREAT EVERY DAY AS YOUR LAST.....ONE DAY YOU WILL BE RIGHT!!

  3. #3
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    Crank sensor is a good shout, swapping things about is good advice.

  4. #4
    Senior Member K9F's Avatar
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    Your description of the fault was a bit vague. Misfire on a single cylinder or both? No point swapping things over if it's both naturally but the CPS fouling up with crud or moisture ingress in the rubber boot cover is a known cause of misfiring. Quite often a thorough clean sorts it out. It is located adjacent to your oil filter.

    IF YOU GO THROUGH LIFE WITH YOUR HEAD IN THE SAND.....ALL PEOPLE WILL SEE IS AN ARSE!!
    TREAT EVERY DAY AS YOUR LAST.....ONE DAY YOU WILL BE RIGHT!!

  5. #5
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    My description is vague as tbh Im not sure, thanks for that advice, i'll defo check that cps boot.

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