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  1. #1

    problems top speed ultra 260x ?!

    the speed of my ultra 260x on a river is 63 mph at 7860 rpm at WOT .Normal or there is a problem?Equipments my ultra 260 :- R & D 1.1- Walbro 255 lph fuel pump- Solas 16/21- Sparks plug OK- Oil level OKThe propeller is not appropriate or do I set up a 16/24 Solas ?
    what is the problem?Thank you for your help


  2. #2
    Your RPM is good. Sounds like your impeller is the problem. The stock impeller is very good on the 260 Ultras. Why did you change it? JB

  3. #3
    OK, je ai acheté l'ultra 260 avec 16/21 hélice déjà montés.
    Que recommandez-vous comme une hélice avec ma configuration:
    - Solas 16/24
    - Solas 15/23
    - OEM


    Merci pour vos réponses.

  4. #4
    OK, I bought the ultra 260 with 16/21 already mounted propeller.
    What do you recommend as a propeller with my setup:
    - Solas 16/24
    - Solas 15/23
    - OEM


    Thank you for your answers.

  5. #5
    brisyl's Avatar
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    Quote Originally Posted by stephfzr View Post
    OK, I bought the ultra 260 with 16/21 already mounted propeller.
    What do you recommend as a propeller with my setup:
    - Solas 16/24
    - Solas 15/23
    - OEM


    Thank you for your answers.
    a modified stock prop would be better for your setup, i was running 70mph at 8100rpm with mine with minor mod.
    search this forum, you'll find good info on prop, and you'll find out that most came back to stock prop, except for those with moderate to highlly mod skis

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  7. #6
    stock prop modified ? What is it? it is a modified OEM propeller ? how modified the impeller OEM ?Thank you

  8. #7
    brisyl's Avatar
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    Quote Originally Posted by stephfzr View Post
    stock prop modified ? What is it? it is a modified OEM propeller ? how modified the impeller OEM ?Thank you
    you just repitch your stock prop, some prop shop like Impros are specialized in repitching prop, you can do it yourself if you are handy, you just bend the trailing edge to give more pitch, but you need to know what your doing.
    Your best bet would be a prop shop.

  9. #8
    "just sayin".. jetdave56's Avatar
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    Quote Originally Posted by stephfzr View Post
    stock prop modified ? What is it? it is a modified OEM propeller ? how modified the impeller OEM ?Thank you
    I would believe he means adjusting the degree pitch on the blades either steeper (higher) pitch or possibly leaner (lower) pitch on the leading and trailing blades depending on RPMs,don't know what's best for the 260x,I have a OEM prop on my 300x with a steeper pitch by Impros on the trailing edge and love it..

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  11. #9
    The impeller OEM Ultra 260 is a skat trak 12/20 ? I have bought a OEM impeller ( Skat Trak ) and that I modified ?thank you

  12. #10
    brisyl's Avatar
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    Quote Originally Posted by stephfzr View Post
    The impeller OEM Ultra 260 is a skat trak 12/20 ? I have bought a OEM impeller ( Skat Trak ) and that I modified ?thank you
    the OEM impeller is not a skat track, it's build by Kawasaki the part# is 59255-3736 .
    Skat trak, Solas and others are all aftemarket brand name

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