• Weber Marine 4 Barrel Carburetor – Accelerator Pump Test

     One of the most common problems on almost any carburetor is when the accelerator pump circuit fails to deliver the correct amount of fuel. The accelerator circuit works, you guessed it, when accelerating. Throttling up requires an extra shot of fuel and the accelerator pump forces that extra fuel up…

  • Carter B&B Carburetor Lacks Power From Idle To Cruise

    I would look closely at the main discharge. See #28 on the diagram to the right. Remove the aluminum clean out plug. If you purchased our kit you will find one was added but bagged separate from the kit. Using  a flat blade screw driver remove the discharge jet. These…