Re: Carburetor Issues - School me
The throttle plate in the carb must open and close completely without binding, and the linkage and return spring must also function without binding. If you can see any failure of the throttle "butterfly" to match the throat of the carb with the linkage removed, inspect the plate to see if it is bent or otherwise damaged. Check the accelerator pedal to see that it is free to move. Inspect the idle needles in the carb to be sure that they have not been overtightened. The ends should not show rings on the pointed part. Finally, check to see that all hoses that connect to the intake are pliable and not cracked from age. Any small vacuum leak will affect the idle speed.
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