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  1. #1

    2003 Sea Doo Sportster 4-Tec only idles wont rev!! Help!

    I recently purchased this boat and it was winterize and not ran for a year. I fill up the tank check the fluids and took it out for the weekend it did foul the plugs right away replace them ran great the whole weekend.
    Took the boat out the following weekend and ran great for half an hour then started losing RPMS.. Til all the boat would do is only idle them minute you give it gas dies. Shut the boat off check plugs and they were very lean looking. Change the plugs still same issue. No lights on the dash. Took the boat home checked the compression 175 in each cylinder. Changed the fuel filters. Still same issues. What to do from here any ideas?
    Could the injectors be bad or should I check fuel pressure?

    Wear ring and Impeller also replaced!
    Last edited by Tara715; 07-25-2014 at 10:43 AM. Reason: Add more info..


  2. #2
    Could have lost fuel pump or fuel pressure regulator bleeds thru from stagnant gas damage (ethanol separation). Check fuel pressure. also a Throttle Position Sensor could be a issue but that would give a engine code.

  3. #3
    Does anyone know what the fuel pressure should be?

  4. #4
    boost junkie skidoochris's Avatar
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    58psi

  5. #5
    Well tested the fuel pressure and I have 41 psi. Is that not sufficient enough?

  6. #6
    boost junkie skidoochris's Avatar
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    time to change fuel pump and pickup filters
    as you found out 40ish is not going to work
    if they are brp oem fuel pumps you got your fair use out of it
    the pump my not be bad but its not worth changing the pick up filters and leave the over 10 old pump
    you must remove the pump to change the pick up filter "sock"
    after you change out the pump and you still do not have 58ish psi
    then change the fuel reg

    look here http://www.greenhulk.net/forums/showthread.php?t=212294

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