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  1. #1

    What size jet works valve ? 1/4" or 3/8" 1200cc ski

    what you all recommend ? I would think a 3/8" for my application ? 1200 cc ski.. No mods thus far other then rd intake grate and stator.. Only thing it may see is a nu-jet impeller.. Thanksgiving
    Last edited by Fenderjack; 07-13-2015 at 09:37 PM.


  2. #2
    MSX 150 guy lives on Mr. GP1800's Avatar
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    You can use either. I have a 1/4 inch one on my single pipe 1200s. I also use a clear hose so I can see if the water is flowing.

    A Nujet prop should be stock on your ski. Probably the Polaris 5132202

  3. #3
    Did you see a difference with just the 1/4 one as far as power or speed improvement ? Does it really make it come of of the hole harder ? Yes it is a laris impeller now but don't have the part number off hand.. Is there a better impeller out ther for mid to top end ? I heard to kinda stay away of the Solas wheels

  4. #4
    Also any reason running a T befor that or after that for a pisser would be a issue ?

  5. #5
    MSX 150 guy lives on Mr. GP1800's Avatar
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    I originally installed the Jetworks valve because the exhaust was filling up with so much water during extended idle periods it was killing the engine. Yes they make a difference.

    The Nujets are the best for mid to top end.

    Where do you want to run a pisser? Why do you want to do it? You do not want to tap into the stinger fitting. You will mess with the pressure in that line and cause performance problems.

  6. #6
    Just to be sure the engine is getting water throughout it.. I seen that some guys are tapping the top of the water bar on the mag cylinder, I just figured I could pick up the flow some where after it exits the engine.. And if the prop that's in his ski matches that number there will be no gain really from speed anywhere ? Thanks man

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