Yamaha F90 Jet Drive outboard


Yamaha F90 Jet Drive outboard.

  • Year 2021
  • Make Yamaha Marine
  • Model F90 Jet Drive


Yamaha F90 Jet Drive outboard.

2021 Yamaha Marine F90 Jet Drive

Our completely redesigned, 1.8-liter F90 Jet Drive four stroke produces 65 hp at the pump. Its compact, light-weight SOHC four-cylinder, in-line design features a long-track induction system and Yamaha’s proprietary YDC-30 aluminum alloy. This creates a light, compact, powerful outboard for deck boats and deep-V hulls navigating shallow, rocky rivers.

Features may include:

  • Compatible with mechanical controls, our Multi-Function Tiller Handle, analog gauges and Command Link®
  • 354 pounds (including jet pump assembly)
  • Fits 25-inch transom boats
  • Solid 35-amp alternator
  • Power Trim & Tilt.

2021 Yamaha F90 Jet Drive outboard


Engine Type Inline 4
Engine Power Prop Shaft: 65 hp @ 5500rpm
Displacement 1.8 L
Bore 81 mm (3.19 in)
Stroke 88.9 mm (3.5 in)
Compression Ratio 10.0:1
Throttle Full RPM Range: 5000 ~ 6000 rpm
Steering Angle (maximum): 35° from center, either direction
Exhaust Through Jet Nozzle
Ignition TCI Microcomputer
Oil Type Recommended: Yamalube® 4M (See owner’s manual)
Lubrication Wet Sump
Cooling Recommended: Thermostatic Control
Gear Ratio (Primary) Direct Drive
Gear Shifter Forward, Neutral, Reverse
Induction EFI

Spark Plug

Spark Plug LFR5A-11


Starter System: Electric
Alternator Output, Maximum Output at W.O.T.: 35 Amp | 35 Amps

Fuel System

Fuel System Ethanol Blend Limit: 10% Maximum
Fuel Type Recommended: Octane 87 | Recommended Filtration: Yamaha 10-Micron Fuel/Water Separating Filter (external)


Length Shaft: Fits 25″ Transom
Dimensions Degree of Tilt: 70° | Degree of Trim: -4 through 16°


Oil capacity 3.2L/3.0L


Weight 354 lbs (161 kg)
Dry Weight 495 lbs (225 kg)


Features Intake: 16 | C.A.R.B. Rating: 3-Star


Warranty Limited 2-Year Pleasure, 2-Year Government, 1-Year Commercial.
Yamaha F90 Jet Drive outboard.


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