Yamaha Midrange F50 Four Stroke

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Engine Type In-Line Four-Cylinder
Displacement 60.8 ci (996 cc)
Bore x Stroke 65 x 75mm (2.56 x 2.95 in.)
Prop Shaft Horsepower 50hp @ 5500rpm
Compression Ratio 9.5:1
Fuel Induction EFI (SOCH)
Exhaust Through Propeller
Intake Single Throttle Valve
Ignition TCI Microcomputer
Spark Plug DPR6EB-9
Alternator Output 17 Amp
Starting System Electric with Power Trim & Tilt
Lubrication Wet Sump
Engine Oil Capacity 2.1L/1.9L w/without filter
Full Throttle RPM Range 5000 ~ 6000 rpm
Cooling Water/Thermostatic Control
Recommended Engine Oil Yamalube® 4M (See owner's manual)
Recommended Fuel Regular Unleaded (Minimum Pump Octane 87)
Recommended Fuel Filtration Yamaha 10-Micron Fuel/Water Separating Filter (external)
Ethanol Blend Limit 10% Maximum
Gear Ratio (28:12) 2.33:1
Gear Shift Forward, Neutral, Reverse
Shaft Length L=20
Degree of Tilt 69°
Degree of Trim -4° through +20°
C.A.R.B. Rating 3-Star
Dry Weight 119kg (262 lbs)
Steering Angle (maximum) 40° from center, either direction
Warranty 3 Year Limited Pleasure Boat - 1 Year Limited Commercial