||The carburetor atomises the fuel and mixes it with air, and controls the delivery of the correct mixture to the engine.
|Mechanical fuel pumps
||The mechanical fuel pump has a diaphragm separating two chambers. Moving the diaphragm down draws fuel into the pumping chamber. A spring then moves the diaphragm up, forcing fuel from the pump, into the carburetor.
|Electric fuel pumps
||An electric fuel pump operates with the ignition switched on. It can be controlled so that it operates only if the engine is running.
|Tanks & lines
||Most fuel tanks are in two parts joined by a weld around the flanges where the parts fit together. Baffles make the tank more rigid, prevent surging of fuel, and ensure fuel is available at the pickup tube.
||The fuel tank is connected to the engine by fuel lines. A return line may carry excess fuel back to the tank, to keep fuel system components cool.
||Charcoal canisters are used in some emission systems as a means of preventing pollution to the atmosphere.
||Carburetor filters are used to prevent particles from entering the fuel carburetion/injection components.|