Yes, the Yamaha FZ S V3.0 FI is equipped with a fuel injection system. This system is responsible for delivering the right amount of fuel to the engine to ensure optimal combustion, resulting in improved fuel efficiency and lower emissions. The fuel injection system in the Yamaha FZ S V3.0 FI uses a sensor to monitor the engine's air intake and adjust the amount of fuel injected accordingly, providing better throttle response and smoother power delivery.