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  1. #1

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    2014 FX SVHO - Recommended fuel

    So here's a question.....If I were to purchase a 2014 FX SVHO, would I have to run 91 octane in it all the time ? Most of the time when I fill up on the water, the highest octane available is 89 octane. Would there be eventual problems/issues with the watercraft because I would be putting 89 octane fuel in it ?

    I have a couple of 2013 FX SHO's and want to get a 2014 model. Yamahas have always run on 87 octane and this is the only thing that is keeping me from pulling the trigger on a FX SVHO.

    MS


  2. #2
    YoYamma's Avatar
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    I would run the fuel Yamaha recommends.
    I was going to start running our RXT's on lower octane a few years ago, but after consulting the Green Hulk, Jerry told me not a good idea due to possible detonation issues.

  3. #3
    Take the time to smile sirbreaksalot's Avatar
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    Premium fuel only !!!!!

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  5. #4
    This is a consideration with 91 octane Skis. If you start out with a full tank of 91 and at some point on the water you need a half tank of 89, you will now be net net 90 octane in the tank. A good octane Booster can get you back to net net "91" in this scenario. But I would not rely on the octane Booster too much (like bringing 87 octane up to 91 . . . I don't think this is a good idea). JB

  6. #5
    DP.'s Avatar
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    Here is my idea, what if he started out with a full tank of 93 to 97 octane which the ski may be able to run on and when it gets lets say half tank he then tops it up with 89 octane, would it end up 91 oct. for the last full tank of fuel? just a thought!

  7. #6
    Click avatar for tech links/info, donation request K447's Avatar
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    Quote Originally Posted by DP. View Post
    Here is my idea, what if he started out with a full tank of 93 to 97 octane which the ski may be able to run on and when it gets lets say half tank he then tops it up with 89 octane, would it end up 91 oct. for the last full tank of fuel? just a thought!
    97 octane ... That would be straight RON octane rating, not the US AKI octane rating ?

  8. #7
    bryantjopplin's Avatar
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    Depends on the altitude as well. But who goes skiing in the rockies? Wait I mean jet skiing

  9. #8

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    Has anyone actually read the sticker beside the gas fill or read the owner's manual to a 2014 SVHO. I am not interested in opinions if it is bad for the machine. I want to know what Yamaha actually states, which will determine if the warranty would still be valid. If I buy a 2014 SVHO I will normally operate the machine on 93 Octane but want to know what Yamaha actually states as the minimum octane. I know my 2012 RXP-X 260 states recommended 91+ but states 87 as the minimum octane. I have used 87 octane without any issues. The main concern is if the warranty would still be valid.

    Additionally, when I had Hondas they stated recommended 91+ minimum 86+ but in the owner's manual it stated not to operate over 5,000 RPMs with less than 91 octane. Please post pictures of the sticker and/ or scanned copy of the page in the owner's manual if possible.

  10. #9
    liquid chicken's Avatar
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  12. #10
    samy-gti's Avatar
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