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  1. #1
    PWCToday Newbie
    Join Date
    Jun 2016
    Location
    Cocoa, FL
    Age
    42
    Posts
    17

    SUV 1200 NPV Questions

    Well it looks like I have to rebuild my carbs due to some bad gas I had gotten. I already did the fuel return mod last time they were out. I know I read somewhere ( that i cant find now) that there are some changes to the OEM jet sizes and going from a 1.2 NS to a 1.5 to make a better running engine . I have a Yama SUV 1200. Hope someone can point me in the correct direction.

  2. #2
    PWCToday.com Is My Home Away From Home
    Join Date
    May 2007
    Location
    Arkansas
    Posts
    2,260

    Re: SUV 1200 NPV Questions

    1.5 n/s
    105 lows
    135 highs
    115 gram spring. Used to be gold, now is silver. 55 pop off is what your looking for. Check
    for slop in the shaft bushings. Synchronize carburetors to group k recommendation.

    If you did the return mod you should be runing this combo anyway. Most are running after market flame aresters with this mod.

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