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  1. #1

    MSX 150 W/ No Spark

    Hi Everyone,

    I have an '04 MSX 150 that I recently purchased to work on and it has no spark! I thought perhaps it was the coil pack but I'm not getting any sort of reading out of the plugs.
    It turns over just fine, the lcd seems to function properly, and there are no check engine lights.
    Does anyone know if the ecu could be bad and how to check it? Or perhaps another alternative to fixing this problem?



  2. #2
    Click avatar for tech links/info, donation request K447's Avatar
    Join Date
    Jul 2007
    near Toronto, Canada

    The four-stroke turbo Weber engine is the most complex that Polaris used in any watercraft. The diagnostics are specific to the Weber engine.

    You will need to do a bunch of searching and reading. Start here;
    Polaris MSX 150, MSX 110

  3. #3
    Every adventure comes to an end........ Not Today! wreckingball's Avatar
    Join Date
    Sep 2009
    San Diego, California, United States
    I was about to say ask K447 - But my page just refreshed and.....

  4. #4
    Thank you for the link! I skimmed through it briefly last week but I'll go through it in-depth this time

  5. #5
    Kosh's Avatar
    Join Date
    Sep 2007
    If your battery votage drops below 10.8v while cranking you will get no spark or injection.

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