Yamaha Portable F8 Four Stroke

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Engine Type Two-Cylinder
Displacement (197cc) | 12.0 ci
Bore x Stroke 56.0 mm x 43.0 mm (2.20 x 1.70 in.)
Compression Ratio 9:4:1
Prop Shaft Horsepower 8 hp at 5500 rpm
Full Throttle RPM Range 5000 ~ 6000 rpm
Fuel Induction SOHC
Intake Carburetor
Exhaust Through Propeller
Cooling Water/Thermostatic Control
Ignition CDI Microcomputer
Spark Plug BR6HS-1000-000
Alternator Output 6 Amp (requires optional rectifier/regulator)
Starting System M = Manual
Lubrication Wet Sump
Engine Oil Capacity 0.8L (0.85 qt)
Recommended Engine Oil Yamalube® 4M (See owner's manual)
Recommended Fuel Filtration Yamaha Mini 10-Micron Fuel/Water Separating Filter (external)
Recommended Fuel Regular Unleaded (Minimum Pump Octane 87)
Ethanol Blend Limit 10% Maximum
Gear Ratio (27:13) 2.08:1
Gear Shift Forward, Neutral, Reverse
Shaft Length S=15" L=20"
Degree of Tilt 71˚
Degree of Trim 4 positions
C.A.R.B. Rating 3-Star
Dry Weight F8SMHB = 38kg (87lbs) F8LMHB = 39kg (89lbs)
Steering Angle (maximum) 45° from center, either direction
Warranty 3 Year Limited Pleasure Boat - 1 Year Limited Commercial