running rich

• fuelEnergy source material
• carburetorEngine fuel-air mixer
• exhaustUse up entirely
• black smokeSooty airborne combustion byproduct
• gasolineRefined petroleum vehicle fuel

choke · flooded · engine · spark plugs · mixture · idle · sputtering · fumes · injector · tuning · combustion · sooty · misfire · throttle · wasteful · overflow · flooding · backfire