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Thread: cool air intake

  1. #1
    bkweld's Avatar
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    cool air intake

    anybody have any ideas / pics as to how to fabricate or modify a Riva pwr filter to direct cool air intake with a way to divert the water?


  2. #2
    Yamaha Mechanic TunedFX140's Avatar
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    http://www.racingworks.com/aem_air_water_bypass.htm

    And to keep the filter from getting restrictive if it got wet run a Stainless screen filter

  3. #3
    bkweld's Avatar
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    could this work?
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    In my opinion, you have to be really careful about doing this.

    The main question is what kind of riding do you do? If you are in the rivers and the ski is not subjected to getting soaked, you will probably be okay. If you do any ocean riding, wave jumping or submaring your ski with a lot of water you will probably have some water intrusion.

    There are kits out there that are nice. Is it worth it? I don't know, but the gain is minimal compared to the possibility of sucking in water.

  5. #5

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    i am working on an idea for mine i will post a pic once it is done.

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    mjh3ides's Avatar
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    Quote Originally Posted by bkweld View Post
    could this work?
    I like it!...especially your idea having it recessed so the filter doesn't take up storage space. I'd probably run hoses from both intakes to make sure there's no restriction of air flow. As your drawing shows, leaving the drain plug out would allow any water to just drain into the hull with no worries about ingesting it.

  7. #7
    bkweld's Avatar
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    hurry up razzie! if i ran both hoses then there would be no engine venting. I'm thinking now of installing a separate hose for cool air intake. there may be space to bore in a 4" flange on the right side of hull under the cowl next to the stock vent or just left of center glove box. Possibilities for mounting flanges at home depot in dryer section but they don't carry 4" flexible vinyl hose only metal.

  8. #8

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    Im thinking of using the elbow off the s/c with a peice of stainless pipe to lift the filter up then put a large K & N type filter up in the corner some where to keep it dry. like the riva kit but my own with a larger filter element to draw more air in.

  9. #9
    bkweld's Avatar
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    the elbow off s.c. is a smaller dia... more restrictive and no direct cool air w/ that plan. I ride only fresh & mostly smooth so for now and until I or someone else comes up w/ a clear plan, i've chickened out. I've decided to just redirect right vent in front of the filter 4-5" away by securing to the fuel strap. Hopefully this will help w/ cool air and to divert water although this could present a problem in the event of a capsize I guess.
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  10. #10
    lets race.... mikeFZR's Avatar
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    Quote Originally Posted by bkweld View Post
    the elbow off s.c. is a smaller dia... more restrictive and no direct cool air w/ that plan. I ride only fresh & mostly smooth so for now and until I or someone else comes up w/ a clear plan, i've chickened out. I've decided to just redirect right vent in front of the filter 4-5" away by securing to the fuel strap. Hopefully this will help w/ cool air and to divert water although this could present a problem in the event of a capsize I guess.
    I zip tied my hose to the fuel strap too just like in your picture. You should check out the JD intake.

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