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  1. #1
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    yamaha vmax150 boggs down when on plane

    eng boggs out when on plane so i let off and than increase slowly and runs fine.


    Modified by lesaug at 8:11 AM 6/7/2009

  2. Member craigs06's Avatar
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    #2

    Re: yamaha vmax150 boggs down when on plane (lesaug)

    Carb, EFI or HPDI?
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    #3

    Re: yamaha vmax150 boggs down when on plane (craigs06)

    Its a carberator

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    #4

    Re: yamaha vmax150 boggs down when on plane (lesaug)

    Sounds more like a fuel delivery problem to me. Fuel pumps, fuel bulb, check valve, kink in line, small hole in line sucking air. Either of these could cause your problem.

    Eliminate the simple stuff first then move on to the serious stuff such as carb problem. If it were just teh carbs it would probably be doing bogging on take-off too and or at idle.

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    #5

    Re: yamaha vmax150 boggs down when on plane (NBE)

    I think it was the fuel bulb took it out today just try some things and it still did the same but while on plane had my father in law pump the bulb when it started bogging down he pumped it when it started and it stopped then it bogged agian he pumped the bulb and it stopped agian. The bulb was soft every time he went to pump it while on plane. it would run fine as long as he pumped the bulb. when he stoped pumping the bulb it would bogg down .


    Modified by lesaug at 8:27 PM 6/7/2009


    Modified by lesaug at 8:30 PM 6/7/2009

  6. Member fishnhunt's Avatar
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    #6

    Re: yamaha vmax150 boggs down when on plane (lesaug)

    Could be a fuel pump issue if your bulb was soft.....too test you bulb turn it upside down when if is fully pumped with fuel, then if the gas goes back into the tank you have a bad check valve in the bulb....
    2007 Skeeter 20i class, Yamaha HPDI 250 "If the boat does not rock on your hookset, you are not setting it HARD ENOUGH!!" **Common sense is not common, it is a function of experience and training**

  7. Member Z518 Comanche's Avatar
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    #7

    Re: yamaha vmax150 boggs down when on plane (lesaug)

    I had that problem with mine. One of my syphon tubes in one tank was cracked at the top.

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