Power your boat with the Yamaha F90 90HP Outboard Motor, engineered to deliver impressive torque, responsive acceleration, efficient operation, and dependable performance for fishing and recreational boating.
The Yamaha F90 Midrange features a 1.8-liter inline-four engine with a single overhead camshaft and four valves per cylinder. This design improves volumetric efficiency while keeping the engine compact and lightweight, helping deliver strong power for a broad range of compatible vessels.
Weighing approximately 353 pounds in the 20-inch shaft configuration, the Yamaha F90 offers an attractive balance of horsepower and weight. The 25-inch configuration weighs approximately 362 pounds, depending on the specific model. This makes it a practical choice for compatible aluminum fishing boats, bay boats, center consoles, skiffs, and other recreational vessels designed for a 90HP outboard.
The F90 features a 35-amp alternator, providing charging capacity for the boat’s battery and compatible onboard electrical equipment. Its electronic fuel injection system supports responsive throttle performance and efficient fuel delivery.
The engine is available with 20-inch or 25-inch shaft configurations, allowing customers to select the appropriate model for their boat’s transom height. It is offered in Yamaha Gray, Pearl White, and Matte Brown, subject to the specific model and shaft combination.
For anglers, the optional Variable Trolling RPM feature can provide additional control over slow-speed operation through a compatible Command Link tachometer.
The Yamaha F90 90HP Outboard is an excellent option for compatible fishing boats, center consoles, bay boats, skiffs, and recreational vessels requiring reliable 90HP propulsion.
Product Specifications
Brand: Yamaha
Model: F90 Midrange
Horsepower: 90 HP
Engine Type: 4-Stroke
Engine Configuration: Inline 4-Cylinder
Displacement: 1.8L
Camshaft Design: Single Overhead Camshaft (SOHC)
Valves: Four Valves per Cylinder
Fuel System: Electronic Fuel Injection (EFI)
Shaft Length: 20″ or 25″
Dry Weight: Approximately 353 lbs (20″) / 362 lbs (25″)
Alternator Output: 35 Amps
Recommended Minimum Fuel Octane: 87
Starting System: Electric
Controls: Remote Mechanical
Trim System: Power Trim & Tilt
Variable Trolling RPM: Optional via Compatible Command Link Tachometer
Color Options: Yamaha Gray, Pearl White, Matte Brown on selected models
Condition: New
Key Features
Yamaha F90 90HP outboard motor, 1.8-liter four-cylinder engine, 4-stroke EFI technology, SOHC design, four valves per cylinder, 20-inch shaft option, 25-inch shaft option, 35-amp alternator, approximately 353-pound dry weight for the 20-inch model, electric starting, remote mechanical controls, power trim and tilt, optional Variable Trolling RPM, responsive acceleration, efficient fuel delivery, Yamaha Gray finish, Pearl White finish, Matte Brown finish on selected models, suitable for compatible fishing boats, aluminum boats, center consoles, bay boats, skiffs, and recreational vessels
Why Choose the Yamaha F90 90HP?
The Yamaha F90 90HP Outboard Motor is designed for boat owners who want strong midrange performance, a lightweight engine package, and efficient four-stroke operation.
Its 1.8-liter inline-four engine combines a single overhead camshaft with four valves per cylinder to support volumetric efficiency and responsive acceleration.
The F90 also provides practical marine features, including a 35-amp charging system, electronic fuel injection, remote mechanical controls, and power trim and tilt.
With 20-inch and 25-inch shaft options, the F90 can suit a range of compatible hull and transom configurations. Customers who need precise slow-speed control for fishing can also consider the optional Variable Trolling RPM feature.
1.8-Liter Four-Cylinder EFI Engine
The Yamaha F90 features a 1.8-liter inline-four engine with electronic fuel injection.
Its SOHC design and four valves per cylinder are intended to improve airflow and volumetric efficiency, supporting strong torque and responsive acceleration.
Electronic fuel injection helps regulate fuel delivery, while Yamaha’s engine management system supports smooth and dependable operation.
Lightweight 90HP Performance
The standard Yamaha F90 weighs approximately 353 pounds with a 20-inch shaft and approximately 362 pounds with a 25-inch shaft.
This lightweight configuration makes it a practical option for compatible fishing and recreational boats where engine weight and balance matter.
Actual acceleration, fuel consumption, and top speed depend on hull design, propeller selection, boat load, water conditions, and engine setup.
20-Inch and 25-Inch Shaft Options
The Yamaha F90 90HP is available in two shaft configurations:
20-inch shaft: F90LB in Yamaha Gray, F90LB2 in Pearl White, and F90LB3 in Matte Brown.
25-inch shaft: F90XB in Yamaha Gray and F90XB2 in Pearl White.
These options provide flexibility for compatible boats with different transom heights. Customers should confirm their vessel’s recommended shaft length before purchase.
35-Amp Charging System
The Yamaha F90 features a 35-amp alternator, providing charging capacity for compatible batteries and onboard electronics.
This is useful for fishing boats equipped with navigation systems, fish finders, radios, lighting, and other electrical accessories. Actual charging output varies with engine speed and electrical load.
Optional Variable Trolling RPM
The Variable Trolling RPM feature is optional and can be accessed through a compatible Command Link tachometer, depending on the selected rigging.
This feature gives anglers additional control over slow-speed engine operation, which can be valuable when maintaining consistent trolling speeds.
Customers should confirm compatible gauges, switches, and rigging requirements before ordering this option.
Three Available Colors
The Yamaha F90 Midrange is available in selected configurations with three finishes:
Yamaha Gray – F90LB / F90XB: The traditional Yamaha marine finish.
Pearl White – F90LB2 / F90XB2: A clean white finish for modern boat designs.
Matte Brown – F90LB3: A distinctive matte finish available for the 20-inch shaft model listed in Yamaha’s price list.
Color availability varies by model code and shaft length. Confirm the exact selected configuration before placing an order.
Remote Mechanical Controls and Power Trim & Tilt
The listed Yamaha F90LB, F90XB, F90LB2, F90XB2, and F90LB3 models feature remote mechanical controls and power trim and tilt.
Remote controls allow operation from a compatible helm, while power trim and tilt enables convenient adjustment of the outboard’s position during operation, launching, and storage.
Customers should confirm the controls, cables, steering components, gauges, wiring, and propeller requirements for their particular vessel.
Ideal Applications
This Yamaha F90 90HP Outboard Motor may be suitable for compatible:
Aluminum fishing boats, fishing boats, bay boats, center consoles, skiffs, utility boats, recreational vessels, and other boats designed for a 90HP outboard.
Always verify the vessel manufacturer’s maximum horsepower rating, shaft requirements, steering configuration, controls, and mounting specifications before installation.
Shipping & Availability
Worldwide shipping is available. Contact Norman Outboards for shipping rates, delivery estimates, availability, color selection, shaft options, financing information, rigging requirements, or additional product details.
The Yamaha F90 Midrange Outboard combines a 1.8-liter four-cylinder engine, electronic fuel injection, a 35-amp alternator, and 20-inch or 25-inch shaft configurations for compatible fishing and recreational boats.
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