Accelerator Pump

Discussion in 'Engine, Fuel and Exhaust' started by rgoot01, Jul 4, 2014.

  1. rgoot01

    rgoot01 Member

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    I have a 1979 Low Rider with an 80ci shovelhead. I have replaced the carb with a S&S Super E. My problem is that regardless of where I set my accelerator pump adjustment screw the engine bogs down when I give a quick "blip" of the throttle. I've made every adjustment to the carb as stated in the instructions and the bike runs great. If I slowly roll throttle it has no hesitation and in fact engine picks up without a hitch. I just cant figure out why it bogs to almost dying on a quik blip of throttle.
     
  2. BUBBIE

    BUBBIE Well-Known Member

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    It has to be NOT getting that Full squirt like you think it is...

    signed....BUBBIE
     
  3. Breeze3at

    Breeze3at Well-Known Member

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    An intake air leak can cause hesitation when opening the throttle.
     
  4. Jack Klarich

    Jack Klarich Expert Member

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    Spray some carb cleaner or WD 40 around the intake seals, if the engine speeds up you have an intake leak. Shovels were famous for the rubbers not sealing good. The after market makes better seals and clamps for your engine. You do have a support bracket on that heavy carb?