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* The advertised price does not include sales tax, vehicle registration fees, other fees required by law, finance charges and any documentation charges.
The Yamaha 115 hp and the all-new 90 hp and 75 hp Midrange four strokes are reliable inshore performers. Fast and powerful, they sport 1.8-liter displacement and DOHC or SOHC designs with four valves per cylinder. This gives them exceptional volumetric efficiency and lighter weights. With 25-inch shaft options for the F115 and F90, this horsepower range offers prime power for mid-size craft, including anglers trolling large, rough water in 25-inch-transom multi-species boats. The completely surprising Yamaha Midrange 115, 90 and 75 hp four strokes. A powerful part of our lineup—and your boating experience.
Available for mechanical remote or tiller control
Only 353 pounds
Available in 20” or 25” shafts
Powerful 35-amp alternator
Optional Variable Trolling RPM via the Command Link® tachometer
Engine Type Inline 4
Displacement 1.8L
Bore x Stroke 81 x 88.9mm (3.19 x 3.5 in)
Prop Shaft Horsepower 90hp @ 5500 rpm
Full Throttle RPM Range 5000 ~ 6000
Alternator Output at W.O.T. 35 Amp
Compression Ratio 10.0:1
Fuel Induction System EFI
Weight † 160kg (353 lbs) - 164kg (362 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 16
Ignition TCI Microcomputer
Spark Plug LFR6A-11
Alternator Output 35 Amp
Starting System Electric
Lubrication Wet Sump
Engine Oil Capacity 3.2/3.0L
Recommended Cooling Thermostatic Control
Ethanol Blend Limit 10% Maximum
Gear Ratio 2.15:1
Gear Shift Forward, Neutral, Reverse
Shaft Length 20" - 25"
Degree of Tilt 70
Degree of Trim -4° through +66°
Dry Weight 20" shaft / 160kg (353 lbs), 25" shaft / 164kg (363 lbs)
Mounting Centers 26"
Steering Angle (maximum) 35° from center, either direction
Warranty Limited 3-year Pleasure, 3-year Government, 1-Year Commercial
