Description
DESCRIPTION
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.
- 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
- 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°
- Mounting Centers: 26″
- Steering:
- Steering Angle (maximum): 35° from center, either direction
- Warranty: Limited 3-year Pleasure, 3-year Government, 1-Year Commercial
* Weight refers to shortest shaft length, and is measured without motor oil, gearcase oil and propeller (except models 25 hp and under, which include a standard propeller). All Jet model weights include the jet pump assembly (weight estimated).
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