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  1. #1
    I dream skis engr146's Avatar
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    98 GP760 proper premix ratio

    I read some members suggest 32:1 some 40:1 some 50:1 What is the proper ratio,I will be using yamalube oil
    My tigershark 770 is 50:1
    98 Yamaha GP 760 (Newest)
    98 Tigershark 770TSL(sold)
    96 Montego DLX 640 (sold)
    33' Chriss Craft Catilina

  2. #2
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    Re: 98 GP760 proper premix ratio

    Between 45:1 and 50:1 is fine

  3. #3
    PWCToday Guru 97gp1200's Avatar
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    Re: 98 GP760 proper premix ratio

    I've always heard 40:1 for the best protection at WOT. Not the thread jack but what pre mix oil do yall reccomend? Looking for best bang for buck and also something that will work in my pre mixed Seadoo Spi.

  4. #4
    PWCToday.com Is My Home Away From Home ZMANN's Avatar
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    Re: 98 GP760 proper premix ratio

    50 to 1 is the spec but I like 40 to 1 ,and I have had no issues
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  5. #5
    PWCToday.com Is My Home Away From Home tfergusonracing's Avatar
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    Re: 98 GP760 proper premix ratio

    I agree with Z. 50:1 is correct. I run mine around 45:1.
    It takes a big man to admit when he's wrong. I am not a big man.


  6. #6
    I dream skis engr146's Avatar
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    Re: 98 GP760 proper premix ratio

    sounds good !! 45-50 :1 It Is !! After my 1 st ski's oil pump causing a seizure ,both of my new to me ski's with be premix!!
    98 Yamaha GP 760 (Newest)
    98 Tigershark 770TSL(sold)
    96 Montego DLX 640 (sold)
    33' Chriss Craft Catilina

  7. #7
    PWCToday.com Is My Home Away From Home MikePeavler's Avatar
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    Re: 98 GP760 proper premix ratio

    OEM pump is 50:1

    If stock...I would run 50:1

    Modded I would run 40:1

    Crazy mod ...32:1

    Depends on power output....even at 40:1 you will notice more wear and the exhuast side if you ride it hard if your making good HP....Tim Judge has always said 32:1 with built engines

    M

  8. #8
    PWCToday Regular illtyler's Avatar
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    Re: 98 GP760 proper premix ratio

    I blew my built ski on 40:1 so Im going with 32 or 36 :1. The ski clinic guys recommend 40:1. blowsion said no prob to go 32:1. I say just put a little oil in the gas and go!!
    96 rn sj freestyle setup
    88 sx
    99 gsx limited

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