Yamaha Outboards F90 (50 Hp)

The innovative Yamaha Outboard F90 is packed with features to help set it apart from the competition.

Engine Type: In-Line Four Cylinder
Displacement: 97 ci (1596 cc)
Bore x Stroke: 79 x 81.4mm (3.11 x 3.20in)
Prop Shaft Horsepower: 90hp @ 5500rpm
Compression Ratio: 9.6:1
Fuel/Induction System: EFI/SOHC/4 Valves Per Cylinder
Exhaust: Through Propeller
Intake: Single Throttle Valve
Ignition System: TCI Micro Computer
Spark Plug: LFR5A-11-00-000
Alternator Output: 25AMP
Starting System: Electric w/PTT
Lubrication: Wet Sump
Engine Oil Capacity: 3.7L/3.5L w/without filter
Full Throttle RPM Range: 5000 a 6000
Cooling: Water/Thermostatic Control
Recommended Engine Oil: YamalubeAR 4M (See ownera s manual)
Recommended Fuel: Regular Unleaded (Minimum Pump Octane 87)
Recommended Fuel Filtration: Yamaha Mini 10-Micron Fuel/Water Separating Filter (external)
Ethanol Blend Limit: 10% Maximum
Gear Ratio: (25:11) 2.27:1
Gear Shift: F-N-R
Shaft Length: L = 20a X = 25a
Degree of Til: 70A
Degree of Trim: -4A through +16A
C.A.R.B. Rating: 3-Star
Dry Weight: 25a shaft / 169 kg (372 lbs) ; 20a shaft / 166 kg (366 lbs)
Steering Angle (maximum): 35A from center, either direction
Warranty: 3 Year Limited Pleasure Boat a 1 Year Limited Commercial