Yamaha 4-Stroke 50HP Outboard Motor

Engine Type i4
Displacement 1.0L
Bore x Stroke 65 x 75mm (2.56 x 2.95 in.)
Prop Shaft Horsepower 50hp at 5500 rpm
Full Throttle RPM Range 5000 ~ 6000 rpm
Alternator Output at W.O.T. 16 amp
Compression Ratio 9.5:1
Fuel Induction System EFI
Weight* 112 kg (247 lbs)
Recommended Fuel Octane 87
Recommended Engine Oil Yamalube® 4M (See owner’s manual)
Recommended Fuel Filtration Yamaha 10-Micron Fuel/Water Separating Filter (external)
C.A.R.B. Rating 3-Star
Exhaust Through Propeller
Intake 8
Ignition TCI Microcomputer
Spark Plug DPR6EB-9
Alternator Output 16 Amps
Starting System Electric
Lubrication Wet Sump
Engine Oil Capacity 2.1/1.9L
Recommended Cooling Thermostatic Control
Ethanol Blend Limit 10% Maximum
Gear Ratio 1.85:1
Gear Shift Forward, Neutral, Reverse
Shaft Length 20″
Degree of Tilt 69°
Degree of Trim -4° through +16°
Dry Weight 112 kg (247 lbs)
Mounting Centers N/A
Steering
Steering Angle (maximum) 40° from center, either direction
Warranty Limited 3-year Pleasure, 3-year Government, 1-Year Commercial