The fuel injection system delivers fuel to cylinders by means of pressure from a pump, and allows for more precise control over the mixture of fuel and air, both in proportion and in uniformity. The positive effects of fuel injection are that there is more efficient fuel combustion, better fuel economy, and better engine performance and reduced polluting exhaust emissions.

The fuel is continuously sucked into the intake manifold at a restricted venturi. Air and fuel ratio is determined by throttle depression and size of metering jets.