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  1. #1
    LaveyT's Avatar
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    Question 1995 SLX 780 Coupler ?

    Hey guys,
    Need some help. The first thing I did when I got this ski last year was grease the coupler. For some reason the coupler or drive shaft gave out. I dont see any shavings, just grease. My wife was idling along and it reved up and made a spooky noise. I could see that the coupler and drive shaft were not spinning at the same RPM. The drive shaft would stop ocasionally.
    I suppose I will have to remove the pump and tear it down to find out what failed.
    Where can I find a coupler assuming that that is stripped ?
    Any links to good threads would be appriciated. My connection here at home is slow, Im hoping the dissasembly thread by K447 is my pump
    I will search more threads but help is appreciated


  2. #2
    Click avatar for tech links/info, donation request K447's Avatar
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    Quote Originally Posted by LaveyT View Post
    ...Where can I find a coupler assuming that that is stripped ?

    Any links to good threads would be appreciated.

    My connection here at home is slow, I'm hoping the dissasembly thread by K447 is my pump
    I will search more threads but help is appreciated
    Polaris PWC Parts Sources

    How to remove and re-install the Polaris 148mm jet pump

    How to remove the 148mm modular jet pump (1994-2004)



    While you have the drive shaft out, replace the seals in the through-hull bearing.

    Jet Pump

  3. #3
    She likes the bike. But the ski gets her wet!!!! xlint89's Avatar
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    I'd try John Zigler for a coupler.

    Might want to consider a solid coupler. They seldom fail, and are quite a bit lighter for better response.

    The rubber dampned are suppose to be smoother, but I don't notice any execessive vibration from mine anyway.

  4. #4
    ph2ocraft's Avatar
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    Quote Originally Posted by xlint89 View Post
    I'd try John Zigler for a coupler.

    Might want to consider a solid coupler. They seldom fail, and are quite a bit lighter for better response.

    The rubber dampned are suppose to be smoother, but I don't notice any execessive vibration from mine anyway.
    The more time spent on engine alignment the less need for the large rubber coupler. I personally opt for the solid coupler as well.

  5. #5
    LaveyT's Avatar
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    Thumbs up Thanks alot

    Tons of information,
    I will take it apart tonite with a little luck. The 1995 has the small coupler i suppose it is not solid (has rubber).
    The 20mm turned ground and polished I will have to order (for alinment)
    I suspect alinment, I went thru this with an old I.O. years ago. I still have that alinment shaft in the garage.
    I may wish to become a supporting member after this.
    I will keep you guys up to date on my progress !

  6. #6
    LaveyT's Avatar
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    How do you hold the engine from turning

    When you unscrew the coupler?

  7. #7
    LaveyT's Avatar
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    Rope Trick

    I used the rope trick, It kept the motor from turning and a pipe wrench and cheater pipe got it off.
    Now i need to dissasenble the stator from the drive shaft?

  8. #8
    LaveyT's Avatar
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    Exclamation Splined impeller tool,

    I guess I need one of them now

  9. #9
    She likes the bike. But the ski gets her wet!!!! xlint89's Avatar
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    Or an old driveshaft. That way you can have an impeller and coupler removal tool.

  10. #10
    Click avatar for tech links/info, donation request K447's Avatar
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    Quote Originally Posted by LaveyT View Post
    I guess I need one of them now
    Impeller removal tool is only $10 from Overtons

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