WaveVenture Carb Questions
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  1. #1
    PWCToday Newbie
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    WaveVenture Carb Questions

    Hello, I have a couple questions about the dual carbs on a '95 WaveVenture.

    First, Carb 1 is the front carb, which is the one with the throttle cable attached. Correct?

    I'm then trying to determine where the low and high end adjustments are. I've read a number of posts, and look at a number of pics, but because the WaveVenture carbs are mounted just a tad differently, I wanted to confirm with this group. Are the high end adjustments toward the bow, and the low end toward the stern?

    The WV seems to run great at higher speeds. But it's been dying when idling. (I'm also going to replace the plugs, but I don't believe that's the issue)

    I've got the factory settings, and am planning on making sure all four of the adjustments are at factory. And will then make 1/4 turn adjustments to dial in.

    The other question I had, should I adjust BOTH low end adjustments, on both carbs, at the same time? Or is there a recommended process for adjusting one, then the other?

    Thanks for any recommendations.

    Brad

  2. #2
    PWCToday.com Is My Home Away From Home Grumpy Old Guy's Avatar
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    Re: WaveVenture Carb Questions

    When was the last time the carbs were rebuilt ???

  3. #3
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    Re: WaveVenture Carb Questions

    Definitely planning on a rebuild. With real Mikuni kits. However, I was hoping to make a few adjustments, to be able to get me through the next few weekends with the kids.

  4. #4
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    Re: WaveVenture Carb Questions

    Here are some pics with Yellow arrows with what I 'believe' are the Low and High side adjustments for both carbs. I've also shown the Idle adjustment which is pretty easy. Front High Side.jpgFront Low Side.jpgRear High Side.jpgRear Low Side.jpgIdle Adjustment.jpg

  5. #5
    PWCToday.com Is My Home Away From Home Grumpy Old Guy's Avatar
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    Re: WaveVenture Carb Questions

    Need to rebuild before you can adjust & even then if the ski is stock set it & forget it the factory already did the work for ya.

  6. #6
    PWCToday.com Is My Home Away From Home john zigler's Avatar
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    Re: WaveVenture Carb Questions

    Rebuild carbs, replace needle and seats, new fuel filter, fuel select, etc. These old skis need to be gone through. Failure to do so can, and will result in engine failure..... (Lean = melted pistons)
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  7. #7
    PWCToday.com Is My Home Away From Home Myself's Avatar
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    Re: WaveVenture Carb Questions

    Listen to Grumpy and John!!!! If you continue to ride with dirty or worn out carbs you WILL be buying a whole engine!! Once you completely clean and rebuild them....the lows are "low" on the carbs closer to the intake. The highs are "high" on the carbs closer to the flame arrestor.
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  8. #8
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    Re: WaveVenture Carb Questions

    Thanks. I completely understand on the rebuild. This particular carburetor it was actually rebuilt less than two years ago. I just finished putting this engine into this ski. I also have replaced many of the fuel lines and the fuel filter. It was running pretty well, and then just started to have some idle issues. While putting the engine in, and getting the car reattached, i’m thinking it’s highly possible I may have bumped a setting or so. So I was really just looking to identify and make sure I knew where the high and low settings were. I’m not sure if this particular car is actually set to factory. I want to set it to factory and run it for a little bit.

  9. #9
    PWCToday.com Is My Home Away From Home Grumpy Old Guy's Avatar
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    Re: WaveVenture Carb Questions

    2 years ago ?? Have you heard about ethanol ?? And what it does to rubber parts ??

    You need to go back & rebuild the carbs with genuine Mikuni kits.

  10. #10
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    Re: WaveVenture Carb Questions

    Thanks Grumpy. As an FYI, I've pretty much only run non-ethenol fuel, from our marina at our lake, through the skis. I'm well aware of the dangers and effects of ethenol. And as a matter of fact, our marina uses Valvatec? treated fuel. Specifically for that.

    Another question. I'm looking at a Yamaha service manual for the Wave Venture of that year, and the carb adjustments listed show the same adjustment on both the Carbs. However, several other sites have indicated a different High speed adjustment for the Front vs Rear carb. Any thoughts about which is actually correct? Would appreciate your all's thoughts...

    Thanks for your help. Carbs currently in pieces on my kitchen counter, with appropriate parts soaking overnight in parts cleaner. And yes, Genuine Mikuni kits....

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