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  1. #1

    2000 Polaris Genesis - very low maximum speed in water

    starts runs but wont do more then 15 in the water!

    did compression test today found 130 130 and 120 middle cylinder is nice brown 2 out side cylinders are black

    any suggestions what to check next?


  2. #2

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    carbed or Fuel injected ski?

  3. #3
    Click avatar for tech links/info, donation request K447's Avatar
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    Welcome

    What RPM is it turning at full throttle in the water?

    Any message on the display? Reverse, HOT, Check Engine? Red lamp?

    Any unusual sounds?

    Have you checked the jet pump for debris?

  4. #4
    fuel injected no abnormal sounds last year one of the cylinders was dead so i replaced piston and bored cylinder this has been on going for a few years now! dealer has replaced injectors pcm and middle cylinder. last year it would do 25 - 35 then you shut it of restart it it would do 40 to 50 now it does 15 to 20 at i think it was 4000 rpm around the middle of the guage.

  5. #5
    didnt check the jet pump but i think its more hp related the 2 outside spark plugs were black but not wet

  6. #6
    Click avatar for tech links/info, donation request K447's Avatar
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    Quote Originally Posted by goodyearcobourg View Post
    fuel injected no abnormal sounds

    last year one of the cylinders was dead so i replaced piston and bored cylinder
    this has been on going for a few years now!
    dealer has replaced injectors pcm and middle cylinder.

    last year it would do 25 - 35 then you shut it of restart it it would do 40 to 50 now it does 15 to 20 at i think it was 4000 rpm around the middle of the guage.
    PCM? Do you mean the central computer, which we call the EMM?

    Were the replacement injectors and PCM new parts?

    These Ficht engines do not burn down a piston unless something is wrong.

    What else can you tell us about the history and prior servicing?

    Has the TPS been replaced?

    Correct NGK PZFR6H spark plugs installed?

  7. #7
    yeah spark plugs are correct i replaced them they were used injectors and emm all the work was done by a polaris dealer in bancroft. sorry im a auto mechanic cars main cpu is pcm. it has been going on 3 years now i see your located in toronto would you be interested in looking at it? i live in toronto could bring it to you

  8. #8
    on the trailer it revs up no problem what should the fuel pressure be?

  9. #9
    you asked about tps is that throttle position sensor? if so no it has not been replaced

  10. #10
    Click avatar for tech links/info, donation request K447's Avatar
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    Quote Originally Posted by goodyearcobourg View Post
    you asked about tps is that throttle position sensor? if so no it has not been replaced
    If the TPS is bad then it can cause all sorts of strange problems. And it is good to have a spare on hand anyways.

    Quote Originally Posted by goodyearcobourg View Post
    on the trailer it revs up no problem what should the fuel pressure be?
    fuel pressure should be over 20PSI.

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