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2019 Yamaha F90B - 20 in. Shaft


F90B - 20 in. Shaft



Yamaha has reinvented its versatile F90 outboard to make it even lighter and more compact for greater torque and stronger acceleration. Now the strongest 90-hp outboard money can buy, the new F90 is a great choice for a variety of boats.

Light And Powerful: To keep weight down and efficiency up, the F90 features a single overhead camshaft that deploys four valves per cylinder, which transfers air quickly and facilitates excellent engine response.

Precise Trolling Control: Use the Variable Trolling Speed (VTS) switch to adjust speed in 50-rpm increments simply by pushing a button on the multi-function tiller handle. VTS also functions with Command Link gauges.

Optional Tiller Handle: Yamaha's award-winning Multi-Function Tiller Handle incorporates engine start/stop, emergency stop, gear shift, power trim and tilt operation, variable trolling switch, warning and controls all in one.

Features & Benefits
  • Updated Look: The compact new F90 adopts an updated cowling to keep it consistent with the look of the Yamaha outboard lineup.
  • Multi-Point Fuel Injection: With Multi-point Fuel Injection, Fuel is delivered at the optimum volume and time according to ECU sensor signals. This ensures quick starts, efficient fuel consumption, and ample power along with ultra-low emissions.
  • Command Link Compatibility: The F90 is compatible with Yamaha's Command Link 6Y8 and 6YC digital gauges, as well as Y-COP®.
  • Amp It Up: The F90 features a three-phase alternator that produces up to 35 amps of power — that's 40 percent more output than the previous generation. So there's plenty of electrical power for battery charging and accessories.
  • Peace And Quiet: Yamaha's Shift Dampener System (SDS™) greatly reduces the noise commonly associated with shifting gears. Using a new design and components specific to Yamaha "K" size propellers (4.25"), much of the force of shifting is absorbed. The new F90 is compatible with Yamaha's exclusive Talon™ SDS™ propellers, including GP and Pontoon.
  • Power Trim And Tilt: The F90C is equipped with a single compact, lightweight PTT unit. The tilt angle can be adjusted with the optional tilt limiter.
  • Engine Type: Inline 4-cylinder
  • Displacement: 1832 cc (111.8 ci)
  • Bore & Stroke: 81 x 88.9 mm (3.19 x 3.5 in.)
  • RPM Range: 5000-6000
  • Compression Ratio: 10.1:1
  • Induction System: SOHC, 4 valves per cylinder
  • Alternator Output: 35 Amps
  • Fuel Delivery: EFI
  • Starting: Electric
  • Ignition: TCI microcomputer
  • Lubrication: Wet sump
  • Degree of Trim/Tilt: -4 deg. through +16 deg./66 deg.
  • Exhaust: Through Prop
  • Cooling: Water/Thermostatic Control
  • Gear Shift: F/N/R
  • Gear Ratio: 2.15 (28:13)
Fuel & Lubrication
  • Recommended Fuel: Regular Unleaded (Minimum Pump Octane 87)
  • Recommended Oil: Yamalube 4-M FC-W 10W-30 or 20W-40
  • Oil Capacity: 3.2 L (3.4 US qt) — with filter
  • Shaft Length: 20"
  • Dry Weight: 160 kg (353 lb)
Every attempt has been made to showcase Canadian versions of our products, but all images, information and specifications may not be exact and are subject to change without notice. Some models may be shown with optional accessories.



Engine Type
Inline 4-cylinder
Bore x Stroke
81 x 88.9 mm (3.19 x 3.5 in.)
1832 cc (111.8 ci)


Shaft Length
20 in.
160 kg (353 lb.)


Full Throttle Operating Range
5000-6000 rpm
Gear Ratio / Shift
2.15 (28:13)
Fuel Induction
SOHC, 4 valves per cylinder
35 Amps
Water/Thermostatic Control

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