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  1. #1

    Join Date
    Aug 2019
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    ontairo
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    Rough 1997 Polaris sl1050

    Polaris sl1050 bad state:$1100
    Thin Boyesen power reeds for better low end :$120
    Clear plastic diaphragm: $75
    New Oem keihin diaphragm :$80
    New amg battery: $200
    1200 tx carbs :$149
    Water cooling stator cover: $50
    Fuel line: $50
    Tx carbs fuel line & valve repair 50.
    3/8 water cooling hose.
    3/8 pisser $30
    The psi reads 120, 90, 120 oem:120,120,120/125,115,125.




    Has a welded prop shaft scored wear ring on the edge of service.

    Inner side of prop is tighter than 0.04

    Idle and throttle response is good out of water.

    Going to buy diaphragms and various parts To compare.

    New oem keihin diaphragms look different than ones woven type installed.

    Going to port water cooling and got direction on how to port engine.

    My outside hull has stress crack starboard mid way side bottom and by front nose fuel filler.

    Might not ride as straight as it should.

    Triple pipe big bore dreams!
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    Last edited by Bman4455576; 04-30-2020 at 08:54 AM.

  2. #2
    Good looking ski there. Definitely worth saving.

  3. #3
    casey67's Avatar
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    Lemont,IL
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    Not very rough, that black sticker on the front fades in like 30 hours of use. After 22 years, I would think it needs some work , worst part is the previous mechanic.

  4. #4
    savageman69's Avatar
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    london ontario
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    14
    Engine needs a new center rings...90 psi is done. You want at least 125


  5. #5

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    97 models center is supposed to be 15 psi below mag & pto.Click image for larger version. 

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  6. #6
    savageman69's Avatar
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    Quote Originally Posted by Bman4455576 View Post
    97 models center is supposed to be 15 psi below mag & pto.Click image for larger version. 

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    Well 120 minus 90 Isnt 15....its 30.

  7. #7

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    ontairo
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    115-90 = 25 psi down on cen, 5 psi dow on mag, pto.

    25 psi vs 5 is big % gap.
    Last edited by Bman4455576; 04-30-2020 at 08:59 AM.

  8. #8

    Join Date
    Aug 2019
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    ontairo
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    If the motor didn't get a proper hone finish it could take some time for the pistons to seat. this low compression could be because billet piston clearance , cold engine , did not pull throttle, wear.
    Last edited by Bman4455576; 05-16-2020 at 09:32 AM.

  9. #9

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    Time to pull the engine to inspect.
    Last edited by Bman4455576; 04-29-2020 at 07:19 PM.

  10. #10
    Hazard Racing's Avatar
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    Aug 2016
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    Kalamazoo, Michigan
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    15
    To answer your question.
    Yes the 6 vane SS stator will work on that boat.
    There are plenty of extended ride plates on EBAY for that boat as well as the 6 vane stator.
    Drive shafts on Ebay as well.
    Most guys use the Polaris 650/750 R&D intake grate or the Pro 1200 intake grate.
    There's a Polaris service bulletin for proper exhaust port chamfering on the 1050 engines.

    An up grade would be to use the 1200 Pro or SLX 40mm carbs ,
    V Force 3 reeds from the Polaris Octane are still available on ebay.
    Sleeper kit from Group K , see Group K web site, winter time project.


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