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  1. #1

    Bad mpem and msd?

    New here.. i currently have two seadoo xps and i believe i have a bad mpem in one. Its constanty sending voltage to the starter relay any time the battery is connected. i switched the whole electric box out of the other ski and everything works fine. In addition i also have a msd box that came with the ski seperate but cant find any info on it. Its just plain red and says msd on it with no stickers or numbers. it has 4 lights on the back and only two sets of dip switcheds instead of the three sets i usually see. if anyone is familiar with this let me know. Since i dont have access to the classifieds yet i guess im gonna ask if anyone has any mpem's they would like to sell or a msd enhancer to replace mine with, also looking for aftermarket sponsons as well.

  2. #2

    Join Date
    Apr 2013
    check your start/stop button first? lol
    with the dess key disconnected attach the battery, does it still try to start? if not im thinking your start/stop button might be stuck. otherwise, maybe someone ran a hot wire instead of ground to the starter solenoid?

  3. #3

    Join Date
    Jul 2010
    blue springs , mo
    the MSD is a enhanser ignition system it will give the ski better midrange and low end power. basically replaces the cdi

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