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  1. #1

    Exclamation I need your help

    Hello everyone,

    This is my first ski:

    1994 Polaris 750 SL

    I have snowmobiled in the past and have always loved jet skiing as well. I finaly broke down and I purchased this ski with a fried rear piston and parts all over the bottom of the ski. I really like to work on different motors and so I took on this project. I have gotten my ski running but I have a few questions:

    1. I have heard some talk about the placement of the fuel pump. It is currently on the rear of the bottom of the air box. Is this an ok placement for it or should it go someplace else?
    2. Do I need to install a bilge pump or are the vacuum tubes good enough job at taking water away from the bottom of the ski?
    3. I want to paint the jet ski, but I didn't know if PPG paint would be good enough since the jet ski has the gel coat paint job on it. I have heard that the PPG paint would just scratch. If you think it is good enough, how much should I expect to pay.
    Please put a reply to help me out.


  2. #2
    She likes the bike. But the ski gets her wet!!!! xlint89's Avatar
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    Welcome to the Hulk bucky. Try using the search button and check the tech section. Alot of Q's you have will be answered if you do a little research.

    1. First thing to do is replace the fuel pump with a triple outlet. You should locate the pump down low in the hull and keep the pulse line below 10". There are pics of this somewhere in here.

    2. Siphon tubes work very well, but a bilge pump isn't a bad idea.

    3. ????? Someone else will speak up about this.

    4. You need to find the cause of the burnt piston and correct it. Otherwise it will happen again. Good places to look is at the old fuel lines, old fuel selector valve, carbs need rebuilt or cleaned, also pressure test the crank case. Any vacuum leak or restricted fuel flow will cause a lean issue and burn a piston.

  3. #3
    ph2ocraft's Avatar
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    Hi bucky, WELCOME to the Green Hulk Forums!!!

    I like to mount the 3 outlet pump at the lower portion of the hull.
    Make sure the pump is higher than the pulse line fitting in the block.
    Yet keep the pulse line less than 12 inches long.


    I install an electric pump in everything I own JUST in case a line comes off.
    If there is a leak while the boat isn't running the electric pump will empty the hull.
    If the bilge pump goes bad, the manual bilge will do the job.
    They compliment each other pretty well.

  4. #4
    SPEED KILLS, BUT YOU GET THERE QUICKER Keddano's Avatar
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    Welcome Bucky, The first thing is do a quick search on upgrades to the fuel system. Every first time owner on here has had it explained on here. There is a reason it burnt a piston and it's normally fuel related or a air leak at a seal. The auto drain works go if the seals on the driveshaft are good and the screens on the end of the tubes are not plugged. As far as paint,alot of guys paint their boats.Again you can get alot of imformation that has been been post by some Pros by using the search.

  5. #5
    Connecticut CrazyA's Avatar
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    Definately check the entire fuel system like these guys have said. On the '94's, make sure to check the lines and pickups INSIDE the fuel tank. It's coming up on 14 yrs. old and they should be looked at/replaced.

    Example below...
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  6. #6
    axgrider73's Avatar
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    [quote=bucky_2003;524782I want to paint the jet ski, but I didn't know if PPG paint would be good enough since the jet ski has the gel coat paint job on it. I have heard that the PPG paint would just scratch. If you think it is good enough, how much should I expect to pay.
    Please put a reply to help me out.[/quote]

    Welcome to the Green Hulk!!

    Here is a nice thread about painting a hull.

    http://www.greenhulk.net/forums/showthread.php?t=44269

  7. #7
    Water Bum Rodneyae's Avatar
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    Welcome to the HULK!!!!!!!!!!!!!!!!

    ^^^^^ They said it!!!!!! I would put a bilege pump on it!!!! As you never know when a hose, or a driveshaft seal will blow. If this happens the siphons will not be enough and you will have a sinking feeling in the pit of you stomach. LOL

  8. #8
    Moderator beerdart's Avatar
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    And the siphons only work if the engine it running

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