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Thread: ultra 150 rpm's

  1. #1

    ultra 150 rpm's

    hey i have a ultra 150 with r&d heads,r&d intake,r&d inserts,solas dynafly 16/20 prop, solas intake grate, mikuni 44 carbs just wondering what rpms should i be reading?


  2. #2
    btldigger's Avatar
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    Should be arround 7000 - 7100 rpm just guessing.

  3. #3
    thesepaperwings's Avatar
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    I'm at 7150 on a good day with about the same mods.

  4. #4
    Do work son ultra150nc's Avatar
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    Quote Originally Posted by jramos View Post
    hey i have a ultra 150 with r&d heads,r&d intake,r&d inserts,solas dynafly 16/20 prop, solas intake grate, mikuni 44 carbs just wondering what rpms should i be reading?

    What are the R&D inserts??? thanks

  5. #5
    they r in the reed cage

  6. #6
    Do work son ultra150nc's Avatar
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    are they worth a crap or what? i have not touched my reeds its got 160 hrs on it

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