In a modern motorcycle, the fuel system typically consists of the following components:
Fuel Tank: The fuel tank stores the gasoline or fuel. It is usually located at the front or center of the motorcycle and has a fuel cap for refueling.
Fuel Pump: The fuel pump is responsible for delivering fuel from the tank to the engine. In fuel-injected motorcycles, an electric fuel pump is commonly used. It is typically located inside the fuel tank and is powered by the motorcycle's electrical system.
Fuel Filter: The fuel filter helps remove impurities and debris from the fuel before it reaches the engine. It ensures that only clean fuel flows through the system, preventing clogs or damage to fuel injectors.
Fuel Injectors: In fuel-injected motorcycles, fuel injectors are used to deliver the precise amount of fuel directly into the engine's intake ports or combustion chambers. The injectors are controlled by the motorcycle's Engine Control Unit (ECU) and are activated based on various parameters such as throttle position, engine speed, and load.
Throttle Body: The throttle body is a component that regulates the amount of air entering the engine. In fuel-injected motorcycles, the throttle body also houses the fuel injectors, which spray fuel into the intake ports or combustion chambers in response to the ECU's signals.
Engine Control Unit (ECU): The ECU is the brain of the motorcycle's fuel system. It receives input from various sensors, such as the throttle position sensor, engine speed sensor, and oxygen sensor, and uses this information to calculate the optimal fuel injection timing and duration. The ECU controls the fuel injectors and other engine functions to ensure efficient combustion and performance.
Oxygen Sensor: Many modern motorcycles are equipped with an oxygen sensor in the exhaust system. The oxygen sensor measures the amount of oxygen in the exhaust gases, allowing the ECU to make adjustments to the fuel mixture in real-time for optimal fuel efficiency and emissions control.
Overall, the fuel system in a modern motorcycle with fuel injection is designed to precisely deliver the right amount of fuel to the engine based on various factors, resulting in improved performance, fuel efficiency, and lower emissions compared to carbureted systems.