MAXIMUM ENJOYMENT. MINIMUM EMISSIONS. Yamaha's Electronic Fuel Injection system (EFI) ensures cleaner performance and super-efficient consumption of fuel, all in an engine that delivers impressive power, high speeds and serious torque in the mid-ranges. The 50hp also includes a number of unique Yamaha features, each designed to provide a smooth, comfortable and enjoyable ride. Among them are the Wide Range Power Trim & Tilt system, giving you full, relaxed control – and PrimeStart™ ignition – as effortless as starting a car.