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  1. #1

    RPM's slowly drop as you ride (~20 per second).. occasionally bogs down

    Ski: 07 GTX ltd (08 SC rebuild from Greenhulk)

    Symptoms:RPMs drop gradually drop during ride, occasionally bogs down to almost NO power + surging

    Tried: Checked SC slip, replaced spring washers, shimmed, oil change, gas change, thermostat and water pump replaced(by dealer,$800), spark plugs


    Ski starts up, takes off, hits stock max speed (~65mph, 8100rpm). Riding for 5 straight minutes at WoT, ski finally will start dropping rpms to where its maxing out mid 50's.

    Occasionally, at WoT, as we just found out last week, the thing will just bog down to nothing. Sometimes surges as well. A quick restart and the ski's power is restored. Weird. Once at WoT the screen beeped for a split second and flashed a code. It was too quick to read the code.

    Took to dealer, their master mechanic has never heard of this before, staff has no clue. They changed thermostat & water pump b/c they thought it was overheating. This made no difference in our testing.

    Fuel pump? Any suggestions? Lost cause?


  2. #2
    Banned User
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    Sounds heat related.

    I'd be checking either:

    -Intercooler for blockage
    -Exhaust for weld defect / blockage
    -Leak down test on the 3 pots

    Hopefully someone with more exp can reply aswell.

  3. #3
    Quote Originally Posted by lolzer View Post
    Sounds heat related.

    I'd be checking either:

    -Intercooler for blockage
    -Exhaust for weld defect / blockage
    -Leak down test on the 3 pots
    3 pots? thanks for the reply

  4. #4
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    on the 3 cylinders.

  5. #5
    maybe exhaust leak

  6. #6
    Got Boost? psycho rxp's Avatar
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    Sounds almost like a fuel deivery problem. Maybe the fuel filter in the tank is clogged, or your fuel pump can't keep up. Maybe time to replace, or upgrade . Definately do a compression test as well. Let us know what all 3 are.

  7. #7
    home of the dislexic fingers breon's Avatar
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    Quote Originally Posted by andisblue View Post
    3 pots? thanks for the reply

    sometimes you need to translate to aussie

  8. #8
    shrabber's Avatar
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    Well for it to run fine for 5 minutes and then drop and to shut it off and turn it right back on and runs fine again sounds like either a sensor problem or the ecu tripping out. Has it been hooked up to buds?

  9. #9
    2006 Turbo RXP boBO's Avatar
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    fuel pump or fuel filter

  10. #10
    SplishSplash's Avatar
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    Or clogged fuel tank vent. Just losen the fuel cap and see if the problem goes away.

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