Yamaha 50 hp four-stroke outboards Model: F50FEHDL (imported) outboard end frame height (mm / in): 527 / 20.7 Weight (kg): 110 Engine Type: 4-cylinder Displacement (cm3): 996 Bore and stroke (mm): 65x75 output (hp): 36.8 / 50 maximum speed range (rpm): 5000-6000 Compression ratio: 9.5 Fuel supply system: FI intake system: SOHC Ignition: TCI Transmission ratio: 24: 13 ( 1.85) Alternator: 17A Operation: Before refueling operation mode: the engine splash lubrication Start: electric tilt & tilt mode: Wide range of PTT random tank: 24L Yamaha (Yamaha) with stable performance marine engines, horsepower, fuel consumption is low sewage fewer features, excellent rust and corrosion systems can help increase the durability of the outboard motor, and its durability is a recognized brand marine engines currently.