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1996 polaris stl 780

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  • 1996 polaris stl 780

    Have Polaris stl 780 my question is running with water, remove plug wire from pto or center motor sound changes. remove mag cylinder plug wire no change in sound.
    start with just mag cylinder plug it will run. all cylinder have 130 psi, rebuild carb


    thanks

    tom

  • #2
    Re: 1996 polaris stl 780

    Poor spark on the Mag ignition coil?

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    • #3
      Re: 1996 polaris stl 780

      switched center and mag same thing, pulled carbs and checked reeds look ok

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      • #4
        Re: 1996 polaris stl 780

        if i switch mag and center it does the same thing. pto and center are running and no mag. get on water at half throttle it run great no missing but more full throttle or low throttle starts
        to run rough. pulled carb today to check reeds help

        tom

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        • #5
          Re: 1996 polaris stl 780

          this think at half throttle on water runs great but wide open cuts out or 1/4 open runs bad

          help

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