2025 Yamaha Outboards Midrange 90 hp Base

2025 Yamaha Outboards Midrange 90 hp Base

Swipe to View More

Exterior Colors:

  • Year 2025
  • Make Yamaha Outboards
  • Model Midrange 90 hp
2025 Yamaha Outboards Midrange 90 hp Base

2025 Yamaha Outboards Midrange 90 hp Base

2025 Yamaha Outboards Midrange 90 hp

The sun glints off the water as you head down to the dock for a day with family and friends. Whether you’re trolling for sand bass or towing a skier, Yamaha’s Midrange outboards are ready to fuel the fun. Built to be fast, light and powerful, they’re perfect for mid-sized craft like deck or multispecies boats, and select models offer a 25” shaft option for added versatility. Go ahead and take off for the day with Yamaha’s Midrange 115, 90 and 75 hp outboards.

The all-new 1.8-liter Midrange F90 features greater displacement and a single-overhead-camshaft design with four valves per cylinder. This boosts power and volumetric efficiency, streamlines design, and makes the F90 a leader in torque and acceleration.

Features may include:
  • Only 353 pounds
  • Available in 20” or 25” shafts
  • Powerful 35-amp alternator

Power and Performance

Power and Efficiency

Precision Multi-Point Electronic Fuel Injection delivers the exact amount of fuel needed for optimum performance and efficiency. Yamaha’s EFI optimizes fuel atomization further enhancing fuel economy.

Powerful Hole Shot

The Composite Intake Manifold on the F115, F90 and F75 feature long tube intake tracks, tuned to increase airflow, which boost low-end and midrange torque. This means a more powerful hole shot and increased acceleration. Even with all this responsive power, an air silencer box and surge tank reduce air intake noise and air turbulence for smooth, quiet operation.

Optimum Performance

A TCI microcomputer ignition adjusts timing to maintain optimal engine performance, economy and power under all operating conditions.

Convenience and Control

Multi-Function Tiller Handle

The F115 and all-new F90 and F75 are compatible with Yamaha’s award winning Multi-Function Tiller Handle. It incorporates engine start/stop, emergency stop, gear shift, power trim and tilt operation, variable trolling switch, warning and controls all in one.

Charging Power

The F115, F90 and F75 feature three-phase alternators that produce up to 35 amps of power. For the 90 and 75 hp, that’s 40 percent more output than previous designs, and for the 115, it’s more than 45 percent more charging power. That’s plenty of electrical power for battery charging and accessories, with more to spare.

Variable Trolling

The F115, F90 and F75 feature Yamaha’s Variable Trolling RPM Switch (VTS®). This allows for precision adjustment of trolling speeds in 50-RPM increments, from 650 to 900 RPM for the 115 hp, and 550 to 1000 RPM for the 90 and 75 hp. It even allows for sub-idle trolling. This is a major plus for anglers.

Engine

Engine Type Inline 4
Engine Power Prop Shaft: 90hp @ 5500 rpm
Displacement 1.8L
Bore 3.19 in (81 mm)
Stroke 3.5 in (88.9 mm)
Compression Ratio 10.0:1
Throttle Full RPM Range: 5000 ~ 6000
Steering Angle (maximum): 35° from center, either direction
Exhaust Through Propeller
Ignition TCI Microcomputer
Oil Type Recommended: Yamalube® 4M (See owner's manual)
Lubrication Wet Sump
Cooling Recommended: Thermostatic Control
Gear Ratio (Primary) 2.15:1
Gear Shifter Forward, Neutral, Reverse
Induction EFI

Spark Plug

Spark Plug LFR6A-11

Electric

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

Fuel System

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

Dimensions

Length Shaft: 20" - 25"
Dimensions Degree of Tilt: 70° | Degree of Trim: -4° through +66° | Mounting Centers: 26"

Capacities

Oil capacity 3.2/3.0L

Weights

Weight 353 lbs (160 kg) - 362 lbs (164 kg)

Features

Features Intake: 16

Warranty

Warranty Limited 3-year Pleasure, 3-year Government, 1-Year Commercial

Product Photography