Yamaha Outboards F90 Overview
What Makes It Unique?
Yamaha has a versatile selection of midrange motors including the powerful Yamaha Outboards F90. The nimble F90 is quiet, clean-burning, and a reliable performer. Since the F90 motor features a 16-valve, Double Overhead Camshaft design it offers incredible acceleration. This motor also starts right up because of the Precision Multi-Point Fuel Injection system. Setting this motor apart is the optional 25 inch shaft allowing complete versatility for any boat. The ability for the motor to adjust for a deep V-hull boat or a shallow bass boat is fantastic.
Yamaha Outboards F90
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 – 6000
- Cooling: Water/Thermostatic Control
- Recommended Engine Oil: Yamalube® 4M (See owner’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 = 20″ X = 25″
- Degree of Til: 70°
- Degree of Trim: -4° through +16°
- C.A.R.B. Rating: 3-Star
- Dry Weight: 25″ shaft / 169 kg (372 lbs) ; 20″ shaft / 166 kg (366 lbs)
- Steering Angle (maximum): 35° from center, either direction
- Warranty: 3 Year Limited Pleasure Boat – 1 Year Limited Commercial
The Bottom Line
The Yamaha Outboard F90 Outboards is the right motor for nearly every boat with it’s optional 25 inch shaft. So go ahead, buy that new boat – your Yamaha F90 will fit perfectly.
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