Carburetor tuning is the process of repairing and adjusting the parts of the carburetor to ensure a smooth-running engine. Important parts to check include the air filter, fuel supply system, idle speed and mixture, high-speed mixture, and the choke linkage.
Cleaning the air filter helps to prevent the emission of black smog from the exhaust. Choke linkages tend to bind or stick when they get dirty, resulting in wear and constant vibration. Getting rid of the dirt on the linkages ensures a smooth operation. Accumulation of deposits in the carburetor causes clogging of the fuel supply system. Removing the deposits enhances the engine performance. Adjusting the mixture screws helps to ensure smooth engine acceleration.