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Difference between carburetor and fuel injection

The difference between a carburetor and fuel injection lies in how they deliver fuel to the engine and their overall efficiency, precision, and environmental impact.

   Carburetor:
   1. Function: A carburetor mixes air and fuel before the mixture enters the engine's cylinders. It relies on the vacuum created by the engine's intake stroke to draw fuel into the air stream, mixing it with the incoming air.
  2. Tuning: Carburetors often require manual tuning to adjust the air-fuel ratio, which can be complex and requires experience.
  3. Efficiency: Generally less fuel-efficient because it lacks the precision to control the exact amount of fuel delivered at different engine conditions.
  4. Emissions: Carbureted engines tend to produce higher emissions due to less precise fuel delivery and incomplete combustion.
  5. Usage: Commonly used in vehicles up until the 1980s, but now mostly found in older cars, motorcycles, and some small engines like lawnmowers.

    Fuel Injection:
  1. Function: Fuel injection systems deliver fuel directly into the engine's cylinders or intake manifold through injectors. The process is electronically controlled, allowing precise delivery based on real-time engine conditions like temperature, RPM, and air pressure.
  2. Tuning: Fuel injection systems are automatically tuned by the engine's electronic control unit (ECU), optimizing the air-fuel ratio for better performance and fuel efficiency.
  3. Efficiency: More fuel-efficient because the ECU can precisely control the fuel delivery, leading to better combustion and power output.
  4. Emissions: Fuel-injected engines are generally cleaner, with lower emissions, as the fuel burns more completely.
  5. Usage: Standard in all modern vehicles since the 1980s, including cars, trucks, and motorcycles.

    Summary:
Fuel injection systems are more advanced, providing better fuel efficiency, lower emissions, and more reliable performance compared to carburetors. This has led to their adoption as the standard in all modern vehicles, while carburetors are now mostly found in older or specialized engines.