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  1. #11
    If it goes to 8000 then smoothly drops down to 7300 without any misfiring, then it's 99% the speed limiter.
    SCOM or ECU reflash to fix it.

  2. #12

    Join Date
    Jun 2020
    Hi All!

    I have been searching the source for the similar problem and also been reading this thread. In my case the fault was caused bad fuel pump. I used the Quantum's kit for replacement, but the original part would be Mitsubishi UC-T33.

    After checking and maintaining the supercharger belt and tensioner, washing intercooler, checking and replacing ignition coils/spark plugs, etc... it's pretty reliefin to get jetski back to its full power

  3. #13
    Jammer15's Avatar
    Join Date
    Feb 2018
    make sure you have the air intake temp sensor, and intercooler temp sensor plugged into the harness the right way around. the plugs are interchangeable the bastards

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