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  1. #1

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    MAX RPM and spedo error

    What is the max rpm stock on an ultra and how far off are the spedos


  2. #2
    rhorne1053's Avatar
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    Mine is only showing 7750 to 7770. Speedometer is off more at lower speeds than top end. At top end it is about 3 to 4 mph slower than what is showing on gps.

    Hope this helps,

  3. #3

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    Lightbulb

    Speedo is useless. Buy a cheap GPS for accurate speed info.
    My tach has peaked @ 7820 RPM`s last I checked.
    I have added some mods and adjusted my oil level, but have not checked the latest RPM reading. My ski is currently low on fuel so the gage will not change to RPM`s.

  4. #4
    Formerly Ultra250 TN Aquaholic6801's Avatar
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    Quote Originally Posted by Big Red Monster View Post
    Speedo is useless. Buy a cheap GPS for accurate speed info.
    My tach has peaked @ 7820 RPM`s last I checked.
    I have added some mods and adjusted my oil level, but have not checked the latest RPM reading. My ski is currently low on fuel so the gage will not change to RPM`s.


    Hold the mode button down for a few seconds.

  5. #5

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    Wink

    Quote Originally Posted by Ultra250 Tn View Post
    Hold the mode button down for a few seconds.
    OK. It changed, but the RPM`s have stayed the same 7820.
    I read somewhere that this ski`s max RPM was 8900.
    What`s with that.

  6. #6

    block off plate

    does anyone have a block of plate in a 250x

  7. #7
    Formerly Ultra250 TN Aquaholic6801's Avatar
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    Quote Originally Posted by Big Red Monster View Post
    OK. It changed, but the RPM`s have stayed the same 7820.
    I read somewhere that this ski`s max RPM was 8900.
    What`s with that.

    The rev limiter is 8100 rpm. and you can reset the Max rpm by getting it on diplay and holding down the set button for a few seconds

  8. #8

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    Wink

    Quote Originally Posted by Ultra250 Tn View Post
    The rev limiter is 8100 rpm. and you can reset the Max rpm by getting it on diplay and holding down the set button for a few seconds
    I know the re-set procedure. I`m concerned with the lack of RPM`s.
    7820 is way low of 8100.

  9. #9
    Formerly Ultra250 TN Aquaholic6801's Avatar
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    I dont know of any ski that will hit the rev limiter in stock form, except when coming out of the water on throttle.

  10. #10

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    So back to the Question What RPM is the max horsepower and torque???? My spedo says 70 at 3/4 throttle and full throttle????????there is no change in speed at these throttle settings is the motor that rich???? and the GPS displays 67.5 MPH but the rpm is only7650 max

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