Will Coca-Cola clean a carburetor?

While pouring Coca-Cola into a small engine carburetor is a popular internet myth, it is neither an effective nor recommended method for cleaning carburetor varnish and clogged jets. Coca-Cola contains phosphoric and citric acids that can mildly react with surface rust on exterior metal parts, but the massive amount of sugar syrup contained in the beverage will leave behind a sticky, caramelized residue that dries hard inside tiny brass jets and fuel passages, severely worsening carburetor clogs and attracting dirt. You can troubleshoot fuel delivery issues safely by working with dedicated petroleum solvents. You can verify that your corrective action is successful when using professional aerosol carburetor cleaner spray and a fine wire to physically clear varnish deposits ensures internal fuel passages are pristine and allows the generator to idle smoothly.