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  1. #1

    Installing a bilge pump

    I have a 94 sl750 that i guess didn't come with a bilge pump new. I am wondering if this is something that some of you install on your ski? I know they have saved many boats before from sinking! Is this a good upgrade for a ski?


  2. #2
    She likes the bike. But the ski gets her wet!!!! xlint89's Avatar
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    Very good upgrade. Most came stock after 95 I believe.

    You can find them for a good price on Ebay sometimes.

  3. #3
    Click avatar for tech links/info, donation request K447's Avatar
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    If you want the bilge pump to run automatically when the engine runs (this was the stock system on Polaris models that came with bilge pumps), you may need to upgrade your LR module to one that has an Orange wire output. The Orange wire provides 12 volt power while the engine is running, and turns it off when the engine stops.

    The LR module also contains the voltage regulator for battery charging.

    Does your model have the electric trim?
    Does it work only when the engine is running?

    If yes to both questions, then you already have the Orange wire available on the LR-23 module for powering the bilge pump.

  4. #4
    Quote Originally Posted by K447 View Post
    If you want the bilge pump to run automatically when the engine runs (this was the stock system on Polaris models that came with bilge pumps), you may need to upgrade your LR module to one that has an Orange wire output. The Orange wire provides 12 volt power while the engine is running, and turns it off when the engine stops.

    The LR module also contains the voltage regulator for battery charging.

    Does your model have the electric trim?
    Does it work only when the engine is running?

    If yes to both questions, then you already have the Orange wire available on the LR-23 module for powering the bilge pump.
    Yes mine has the electric trim and it only works when engine is running. I was thinking I would rather have a toggle switch to control it.

  5. #5
    Click avatar for tech links/info, donation request K447's Avatar
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    Quote Originally Posted by Urway2slow View Post
    Yes mine has the electric trim and it only works when engine is running. I was thinking I would rather have a toggle switch to control it.
    You can do both, if you want.

    The Rule pumps are rated for continuous dry operation.

    More than one rider has noticed that water was inside the hull only after so much had accumulated that the engine was sputtering, or died completely.

    Having the pump running all the time means you don't have to think about whether you need to run the pump.

  6. #6
    Quote Originally Posted by K447 View Post
    You can do both, if you want.

    The Rule pumps are rated for continuous dry operation.

    More than one rider has noticed that water was inside the hull only after so much had accumulated that the engine was sputtering, or died completely.

    Having the pump running all the time means you don't have to think about whether you need to run the pump.
    You have a point about that.. Wonder where people are mounting the pumps in the sl 750's and where is the best place to mount the drain on the hull? Their isn't that much room for a bilge on these smaller ski's..

  7. #7
    She likes the bike. But the ski gets her wet!!!! xlint89's Avatar
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    My bilge is mounted between the driveshaft and the waterbox. It's screwed to the "rib".

  8. #8
    Quote Originally Posted by xlint89 View Post
    My bilge is mounted between the driveshaft and the waterbox. It's screwed to the "rib".
    Where do you have it plumbed to in the hull?

  9. #9
    Lake Mead Bum & BTLS Mark starflight's Avatar
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    Quote Originally Posted by Urway2slow View Post
    Where do you have it plumbed to in the hull?
    The pics show the oem locations on a sl780...
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  10. #10
    john zigler's Avatar
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    i have NEW rule 500 gph PWC pumps here for 30.00 + s&h. i also have water proof toggle switches for 15.00, or a rotory type switch for 30.00. we have hose, for 1.50 per foot, and new aluminum outlet fittings for 12.00. i have the plastic OE polaris hull fittings too, you can have for free, and used OE polaris (rule) 360 gph bilge pumps for 15.00 if you want to go that way.

    you can just put the outlet, in the upper part of the rear hull, under the grap bar area.

    the install is really pretty easy. ( we put alot on stand up machines here in my shop)

    send me an email, if i can help out. please let me know exactly what you want. thank you.
    Last edited by john zigler; 05-03-2009 at 09:22 AM. Reason: can't spell, or type.

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