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  1. #1

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    pop-off pressure, 96 WaveVenture 1100

    Would someone be so kind as to tell me what the specification is for the pop-off pressure on the three carbs on my 1996 Yamaha WaveVenture 1100. I have rebuilt them and want to set them up correctly. The factory manual does not list this and I have not been able to find documentation from Mikuni to answer my question. I will appreciate any help that you may be able to give. Thank you.


  2. #2
    Mr. Millennium's Avatar
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    Jul 2010
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    you should be running 70 to 80 lbs of pop off iv never really looked at a wave venture but it is just to liven your throttle response the less pop off the more gas you get i run around 15 to 20 on my modded skis

  3. #3
    GoFastGuru's Avatar
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    most stock yamahas run best at 45 pounds

  4. #4

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    Thank you. I'll try 45 and see how it goes.

  5. #5

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    Your needle and seat combination will give you the information that you want. Look at the base of the Seat to get the number stamped on it. Then go to the mikuni web site.

    Look up under carburetors, the MANUALS section, Super BN owners manual. Super BN carburetors are for water craft applications, and I believe you have size 38 carbs. This manual will tell you pretty much what ever you want to know about the carbs in personal water craft.

    They have a chart (on page 15 of the owners manual) to help you identify which springs that you currently have in your craft. They are identified by different colors and lengths, and in which direction that the spring is wound. It is very simple to identify them. This chart also shows you various combonations of the N/S with the springs to give you the pop off expected.

    When you determine your N/S and spring combination, the chart will tell you what pop off you are targeting.

  6. #6
    slothman's Avatar
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    i have never seen 70-80 pop off...that seems way to high
    I would run 40-45

  7. #7

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    Jul 2011
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    Thanks, Salty! I used the chart as you suggested and set the pressure at 40-45 on all three carbs. Oddly, two of the carbs were pretty close to start with, but one even had a different color spring and the pressure was much lower than the others. I have had this ski since new and no one has ever been into it. Anyway, the ski runs really good now. I should have done this a long time ago. Thanks for the advice!

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