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Yamaha 90 HP1

Yamah Engine-90HP1

Specs

Weight † 20" 353 lbs, 25" 362 lbs
Full Throttle RPM Range 5000 - 6000 RPM
Fuel Induction System EFI
Recommended Engine Oil Yamalube® 4M (See owner's manual)
Engine Type Inline 4
Displacement 1.8L
Bore x Stroke 81 x 88.9mm (3.19 x 3.5in)
Prop Shaft Horsepower 90hp @ 5500 RPM
Alternator Output at W.O.T. 35 amp
Compression Ratio 10.0:1
Recommended Fuel Regular Unleaded (Minimum Pump Octane 87)
Recommended Fuel Filtration Yamaha 10-Micron Fuel/Water Separating Filter (external)
C.A.R.B. Rating 3-Star
Exhaust Through Propeller
Intake 16
Ignition TCI Microcomputer
Spark Plug LFR5A-11
Starting System Electric w/ PTT
Lubrication Wet Sump
Engine Oil Capacity 3.2L / 3.0L (with / without filter)
Recommended Cooling Water, Thermostatic Control
Ethanol Blend Limit 10% Maximum
Gear Ratio (28/12) 2.33
Gear Shift F-N-R
Shaft Length L = 20" X = 25"
Degree of Tilt -4° through +66°
Degree of Trim -4° through +16°
Mounting Centers 26"
Steering Mechanical Remote
Steering Angle (maximum) 35° from center, either direction
Warranty Limited Pleasure Three Years, Government Three Years, Commercial One Year