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Thread: fx 140 problem

  1. #1

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    fx 140 problem

    i have a 04 fx 140 4 stroke. i have not ridden it in 3 months due to football season and yesterday i took it out for a spin. i have kept the gas tank full, plus ran stal-bil in the tank the whole time. when i rode it yesterday it would not run past 6000 rpms and had no get up and go. it started and idled fine but thats all. it acts like a fuel problem, does anyone have any suggestions on what this might be??? thanks


  2. #2
    DAGO RACING CREW 97GPSLEEPER's Avatar
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    I would try the easy stuff first like the spark plugs and then the fuel filter.

  3. #3

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    fx 140

    thanks.

  4. #4
    is not fuel filter to remplace on 4 stroke
    if you dint use for some time you may have a valve open or rings stock to the piston
    or one injector is not working

  5. #5
    Knr's Avatar
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    for that reason i start my ski's once a week and let them run for a few min

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    Banned User
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    Bill whats up? We miss you up in Region 8. JOJO

  7. #7

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    Just to eliminate it as a cause ... and its easy to do ... remove the air filter element and go for a ride as see if that solves it.

    High oil level in the oil tank causes a mist to coat the air filter surface and reduce its flow rating markedly.

    Regards
    Anthony

  8. #8
    Moderator RX951's Avatar
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    do a compression check.

    also, see my signature below on manuals and click on the FX-140 service manual and see if there is a troubleshooting list that might help you identify another problem area.

  9. #9

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    If you are doing a compression check you will need a special adapter to connect most gauges as the plugs are very tiny in the MR-1 engine. They are 10mm by 1.0mm pitch.

    My money is still on the air filter covered in oil mist .... and very easy to determine .... and is the single greatest cause of the symptom.

    Regards
    Anthony

  10. #10
    Never say never KirkF350's Avatar
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    Graham!
    I was wondering where the hell you've been. Get your ride fixed so you can come meet us in Houston in a couple of weeks.

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