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Depending on year and carburetor model there are three or four things that are easy to fiddle with that change how it runs.

  • Idle speed, adjusted on most beside where the throttle cable attaches.
  • The damper. This is to keep the car from "Bogging" or cutting out when you accelerate. It is supposed to have oil in it, there is special oil but I used to use engine oil. Undo the black cap on the top of the carb and add oil, it will self level when the car runs.
  • Idle mixture A screw going into the body of the carb that changes the mixture at idle, adjust until max rpm is achieved using a Tachometer. Then re-set idle speed.
  • Finally the mixture needle height. This is an adjustment that could damage your engine, please consult a proper manual before attempting.
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12y ago

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