Holley Carb Problems
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Holley Carb Problems

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    Default Holley Carb Problems

    My buddy has a Holley carb dble pumper 750 vacuum secondaries and electric choke. It had a gasket kit put into it last year. This year it has a bad stumble off idle until it gets on a plane. Once on a plane it runs great. The boat is a 21ft. Eliminator 460 ford. The boat ran awesome until we got it to powell and it would barely run at all( clouds of black smoke out of the exhaust). We pulled carb off and could find nothing wrong. As a guess i looked on the choke and turned the choke to the lean setting and it was fixed. When we got back to california i set the choke back to std setting. This whole choke vacuum secondaries carb has me ready to throw it into the lake (i'm not a mechanic or very good at tuning a carb). I run a mech. secondaries and no choke holley 750 on my boat and never have any issues.. Anyone have a fix or help? Or anyone have a Holley 750 dbl pumper, mech. secondarie & no choke for sale??

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    Quote Originally Posted by 257scramjet View Post
    My buddy has a Holley carb dble pumper 750 vacuum secondaries and electric choke. It had a gasket kit put into it last year. This year it has a bad stumble off idle until it gets on a plane. Once on a plane it runs great. The boat is a 21ft. Eliminator 460 ford. The boat ran awesome until we got it to powell and it would barely run at all( clouds of black smoke out of the exhaust). We pulled carb off and could find nothing wrong. As a guess i looked on the choke and turned the choke to the lean setting and it was fixed. When we got back to california i set the choke back to std setting. This whole choke vacuum secondaries carb has me ready to throw it into the lake (i'm not a mechanic or very good at tuning a carb). I run a mech. secondaries and no choke holley 750 on my boat and never have any issues.. Anyone have a fix or help? Or anyone have a Holley 750 dbl pumper, mech. secondarie & no choke for sale??
    Dump the choke. BTW, Its either a double pumper OR a vacume sec. carb, not both.
    Within the heart of every stray lies the singular desire to be loved. "Good grief you're an irritating blowhard...." [Tex 6/16/11]

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    Yup i realized what i wrote afterwards, It has vacuum secondaries and is not a double pumper. Is there a way to remove the choke on this carb? What is needed?

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    Quote Originally Posted by 257scramjet View Post
    Yup i realized what i wrote afterwards, It has vacuum secondaries and is not a double pumper. Is there a way to remove the choke on this carb? What is needed?
    Just remove all the choke mechanisim, as well as the choke plate and shaft from the airhorn. Plug the vacume port most Holleys have to draw hot air into the choke housing [bi-metal spring & cover] After removing the choke starting a cold engine might be a little harder and the engine will be somewhat 'coldblooded' but if you are having trouble with the choke it just easier to eliminate it rather than screwing with it.
    Within the heart of every stray lies the singular desire to be loved. "Good grief you're an irritating blowhard...." [Tex 6/16/11]

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    Quote Originally Posted by 058 View Post
    Just remove all the choke mechanisim, as well as the choke plate and shaft from the airhorn. Plug the vacume port most Holleys have to draw hot air into the choke housing [bi-metal spring & cover] After removing the choke starting a cold engine might be a little harder and the engine will be somewhat 'coldblooded' but if you are having trouble with the choke it just easier to eliminate it rather than screwing with it.
    Does it matter it's an electric choke? Is there any kind of a plate or something i need to put on after the electric choke is off or any other parts i need to get?

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    No, leave it open!


    SOMEONE SAID YOU CAN'T TAKE IT WITH YOU! SO,IM BURNING IT UP ONE GALLON AT A TIME!
    WT

    WFL Crew!!!

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    X 2 on the choke ,Carefully loosen and roll Black bakelite choke adj all the way lean till the spring hold the blade open cold Tom

    Personally I'd look into a dual feed double pumper , not a fan of vac secondaries

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    Senior Member DuaneHTP's Avatar
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    Put on a Holley 0-80537 and your problems will be solved for a long time.
    $473.24, and it's a true marine carburetor.
    http://www.holley.com/data/types/pic..._IntroZOOM.jpg That particular carb has a manual choke on it, but we just lock it open or take it off,
    Duane HTP

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    Screamin SeaMonkees Schi-502's Avatar
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    Duane,

    Price a P/N 0-80443, shipped to 95688. UPS ground, ok.

    Mark
    Loose, the Dogs of War!

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    hope this isnt too offtopic i am trying to find the numbers off my holley, i wrote down the numbers that you see when you pull off the scoop, holley said those werent the model numbers, only casting numbers. i need to get a gasket kit for it, anyone help?

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    Quote Originally Posted by sandeggo View Post
    hope this isnt too offtopic i am trying to find the numbers off my holley, i wrote down the numbers that you see when you pull off the scoop, holley said those werent the model numbers, only casting numbers. i need to get a gasket kit for it, anyone help?
    The numbers will be listed on the front of the air horn .. I dont have a pic right this second, however they are right in front.
    Quote Originally Posted by jetboatperformance View Post
    the ensueing fire would likely be extinguished by the sinking however

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    Senior Member jetboatperformance's Avatar
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    Sorry for the small "tangent" but I got to show them ! Heres my new Quick Fuels Tech Carbs (arrived yesterday) Been selling these for a year or so Very Nice product never disapointed Tom
    PS Sandeggo call Josh he'll help you determine the kit you need



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    Quote Originally Posted by jetboatperformance View Post
    Sorry for the small "tangent" but I got to show them ! Heres my new Quick Fuels Tech Carbs (arrived yesterday) Been selling these for a year or so Very Nice product never disapointed Tom
    PS Sandeggo call Josh he'll help you determine the kit you need



    Pretty !!!
    Quote Originally Posted by jetboatperformance View Post
    the ensueing fire would likely be extinguished by the sinking however

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    Quote Originally Posted by jetboatperformance View Post
    Sorry for the small "tangent" but I got to show them ! Heres my new Quick Fuels Tech Carbs (arrived yesterday) Been selling these for a year or so Very Nice product never disapointed Tom
    PS Sandeggo call Josh he'll help you determine the kit you need


    How much do they cost?

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