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    1. #4
      Join Date
      Jun 2001
      Location
      Newbury Park, CA
      Posts
      5,837
      Country Flag: United States
      Is that a double pumper? If so, then I agree to the above as a starting point.

      Carburetor tuning is very dependant on the ignition working properly, a clean well-functioning carb, and a good clean fuel supply.

      If the above is OK, it's time to adjust the mixture screws, located on the front of the carb baseplate. Easily turn each screw in until they seat, then back out 2-1/4 turns. Start the car. With the car fully warmed up turn each screw SLOWLY to the right (lean) until you notice the engine just start to stumble. Back it out a 1/2 turn. Repeat on the other side. Repeat the proceedure several times. You may find that you do not need to back out (richen) 1/2 turn, but only a 1/4-turn. You will need to play with it a bit. Usually for a well balanced package (engine size, cam, carb) about 1-1/2 turns out is about right.

      Main and secondary jetting do not effect idle mixtures.

      You may want to check this out for some additional help.



      http://www.bob2000.com/carb.htm
      Last edited by CarlC; 09-07-2008 at 12:36 PM.
      VaporWorx. We Give You Gas http://www.vaporworx.com





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