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Yamaha F90 Midrange 25 in. Remote Mech PT
Yamaha F90 Midrange 25 in. Remote Mech PT

Specs

General Information

Manufacturer
Yamaha
Yamaha
Model
F90 Midrange 25 in. Remote Mech PT
F90 Midrange 25 in. Remote Mech PT
Model Code
F90XB
F90XB
Color
Signature Yamaha Gray
Signature Yamaha Gray

Electrical

Alternator Output
At W.O.T. - 35A
At W.O.T. - 35A

Engine

Engine Type
Inline 4
Inline 4
Ignition
TCI microcomputer
TCI microcomputer
Starting
Electric
Electric
Exhaust
Through propeller
Through propeller

Measurements

Power
90 Horsepower
90 Horsepower
Displacement
1,800 Cubic Centimeter
1,800 Cubic Centimeter
Bore x Stroke
3.19 x 3.5 in. (81 x 88.9 mm)
3.19 x 3.5 in. (81 x 88.9 mm)
Shaft Length
25"
25"
Dry Weight
362 lbs
362 lbs

Operational

Steering
Angle (maximum) - 35° from center, either direction
Angle (maximum) - 35° from center, either direction
Fuel Type
Unleaded
Unleaded
Use
Fresh and Salt Water
Fresh and Salt Water
Full Throttle RPM Range
5,000 - 6,000 rpm
5,000 - 6,000 rpm
Fuel Induction
EFI
EFI
Lubrication

Wet sump

Recommended Engine Oil - Yamalube® 4M (See owner's manual)

Engine Oil Capacity - 3.4 qt. (3.2 l) / 3.2 qt. (3.0 l)

Wet sump

Recommended Engine Oil - Yamalube® 4M (See owner's manual)

Engine Oil Capacity - 3.4 qt. (3.2 l) / 3.2 qt. (3.0 l)

Cooling
Recommended - Thermostatic control
Recommended - Thermostatic control
Gear Ratio
2.15:1
2.15:1
Gear Shift
Forward, Neutral, Reverse
Forward, Neutral, Reverse
Trim System

Degree of Tilt - 70°

Degree of Trim - -4° through +66°

Power trim and tilt

Degree of Tilt - 70°

Degree of Trim - -4° through +66°

Power trim and tilt

Other

Warranty
Limited 3-year pleasure, 3-year government, 1-year commercial
Limited 3-year pleasure, 3-year government, 1-year commercial

Features

Convenience & Control

  • MULTI-FUNCTION TILLER HANDLE: The F90 is 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 F90 features three-phase alternators that produce up to 35 amps of power. For the 90, that’s 40 percent more output than previous designs. That’s plenty of electrical power for battery charging and accessories, with more to spare.
  • VARIABLE TROLLING: The F90 features Yamaha’s Variable Trolling RPM Switch (VTS®). This allows for precision adjustment of trolling speeds in 50-RPM increments, from 550 to 1000 RPM for the 90 hp. It even allows for sub-idle trolling. This is a major plus for anglers.
  • EXTENDED ENGINE LIFE: A Freshwater Flush Device allows you to flush the engine without starting it, for maximum convenience, durability and engine life.

Features

  • IMPRESSIVE TORQUE & ACCELERATION: The F90 Midrange four strokes have stepped up to 1.8L displacement and now feature a Single Overhead Camshaft, with four valves per cylinder. That makes them both 13 pounds lighter, and our 90 hp a top performer in both torque and acceleration.
  • Prop Shaft Horsepower - 115 hp at 5,500 rpm
  • Compression Ratio - 10.0:1
  • Recommended Fuel - Octane 87
  • Recommended Fuel Filtration - Yamaha 10-micron fuel / Water separating filter (external)
  • C.A.R.B. Rating - 3-Star
  • Intake - 16
  • Spark Plug - LFR6A-11
  • Mounting Centers - 26 in.
  • Compatible with Remote Mechanical Control
  • Compatible with Command Link®, Y-Cop®

Power & 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 F90 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.
  • LIGHTWEIGHT, COMPACT DESIGN: The F90 feature a single overhead camshaft, but still deploy four valves per cylinder. That setup means less mass in the cylinder head and reduced weight for the overall outboard. At the same time, four valves per cylinder means great engine combustion, which contributes to horsepower, torque and fuel efficiency.
  • QUICK ACCELERATION: The F90 have stepped up to 1.8-liter displacement. Meanwhile the 90 hp has both dropped 13 pounds. Lighter weight and increased volumetric efficiency, plus increased displacement equals thrilling performance and make our 90 hp a top performer in acceleration and torque.

Reliability & Durability

  • KEEP THE WATER OUT: Updated cowling design incorporates the latest Water Draining Intake Duct. With side intakes and superior water separation function, this outboard is even better suited to take on the marine environment.
  • MEASURABLY QUIETER THAN PREDECESSOR: Yamaha’s proven labyrinth exhaust system, which gradually expands exhaust gases through a labyrinth, greatly suppresses engine noise at low to medium speeds. Updates to the muffler have greatly reduced noise at higher than midrange speeds.
  • ENGINE WARNING SYSTEM: This system protects the outboard with a range of functions including: overheat protection and low-oil-pressure warning (automatically reducing maximum RPM to 2000), over-rev protection, water-in-fuel detection, start-in-gear protection and shift-in prevention at open throttle.
  • WET SUMP: The F90 use a pressurized oil delivery system and incorporates a compact and durable oil pump to keep all of the moving parts of their DOHC and SOHC systems lubricated and running smoothly for maximum reliability.
  • CORROSION PROTECTION: Combined with our proprietary alloy (YDC-30), our highly vaunted, anti-corrosive paint system provides a tough, five-layer barrier against corrosion. Stainless Steel components such as the drive, prop and shift shafts provide an additional layer of critical corrosion protection. And multiple sacrificial anodes throughout the motor provide protection from the elements.

Convenience & Control

  • MULTI-FUNCTION TILLER HANDLE: The F90 is 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 F90 features three-phase alternators that produce up to 35 amps of power. For the 90, that’s 40 percent more output than previous designs. That’s plenty of electrical power for battery charging and accessories, with more to spare.
  • VARIABLE TROLLING: The F90 features Yamaha’s Variable Trolling RPM Switch (VTS®). This allows for precision adjustment of trolling speeds in 50-RPM increments, from 550 to 1000 RPM for the 90 hp. It even allows for sub-idle trolling. This is a major plus for anglers.
  • EXTENDED ENGINE LIFE: A Freshwater Flush Device allows you to flush the engine without starting it, for maximum convenience, durability and engine life.

Features

  • IMPRESSIVE TORQUE & ACCELERATION: The F90 Midrange four strokes have stepped up to 1.8L displacement and now feature a Single Overhead Camshaft, with four valves per cylinder. That makes them both 13 pounds lighter, and our 90 hp a top performer in both torque and acceleration.
  • Prop Shaft Horsepower - 115 hp at 5,500 rpm
  • Compression Ratio - 10.0:1
  • Recommended Fuel - Octane 87
  • Recommended Fuel Filtration - Yamaha 10-micron fuel / Water separating filter (external)
  • C.A.R.B. Rating - 3-Star
  • Intake - 16
  • Spark Plug - LFR6A-11
  • Mounting Centers - 26 in.
  • Compatible with Remote Mechanical Control
  • Compatible with Command Link®, Y-Cop®

Power & 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 F90 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.
  • LIGHTWEIGHT, COMPACT DESIGN: The F90 feature a single overhead camshaft, but still deploy four valves per cylinder. That setup means less mass in the cylinder head and reduced weight for the overall outboard. At the same time, four valves per cylinder means great engine combustion, which contributes to horsepower, torque and fuel efficiency.
  • QUICK ACCELERATION: The F90 have stepped up to 1.8-liter displacement. Meanwhile the 90 hp has both dropped 13 pounds. Lighter weight and increased volumetric efficiency, plus increased displacement equals thrilling performance and make our 90 hp a top performer in acceleration and torque.

Reliability & Durability

  • KEEP THE WATER OUT: Updated cowling design incorporates the latest Water Draining Intake Duct. With side intakes and superior water separation function, this outboard is even better suited to take on the marine environment.
  • MEASURABLY QUIETER THAN PREDECESSOR: Yamaha’s proven labyrinth exhaust system, which gradually expands exhaust gases through a labyrinth, greatly suppresses engine noise at low to medium speeds. Updates to the muffler have greatly reduced noise at higher than midrange speeds.
  • ENGINE WARNING SYSTEM: This system protects the outboard with a range of functions including: overheat protection and low-oil-pressure warning (automatically reducing maximum RPM to 2000), over-rev protection, water-in-fuel detection, start-in-gear protection and shift-in prevention at open throttle.
  • WET SUMP: The F90 use a pressurized oil delivery system and incorporates a compact and durable oil pump to keep all of the moving parts of their DOHC and SOHC systems lubricated and running smoothly for maximum reliability.
  • CORROSION PROTECTION: Combined with our proprietary alloy (YDC-30), our highly vaunted, anti-corrosive paint system provides a tough, five-layer barrier against corrosion. Stainless Steel components such as the drive, prop and shift shafts provide an additional layer of critical corrosion protection. And multiple sacrificial anodes throughout the motor provide protection from the elements.