Description

Yamaha Outboards 300HP F300UCB2 – High-Performance Offshore Outboard

The Yamaha F300UCB2 is a powerful and versatile 300-horsepower four-stroke outboard designed for serious boaters who demand reliability, efficiency, and performance. Ideal for sportfishing boats, center consoles, luxury cruisers, and offshore applications, this engine combines Yamaha’s legendary engineering with modern technology for optimal power delivery, fuel efficiency, and durability.

Engine & Design

Powered by a 3.6-liter V6 four-stroke engine with Variable Camshaft Timing (VCT), the F300UCB2 delivers smooth, responsive acceleration and excellent torque across the entire RPM range. Yamaha’s Direct Fuel Injection (DFI) system ensures precise fuel delivery, resulting in cleaner combustion, improved efficiency, and reduced emissions.

Built to withstand harsh marine environments, the F300UCB2 features Yamaha’s advanced corrosion-resistant coatings, robust cast-aluminum construction, and marine-grade components, ensuring long-lasting reliability in both freshwater and saltwater conditions.

Key Features

• Horsepower: 300 HP at 5,500 RPM, providing strong acceleration and high top-end speeds.

• Engine Type: 3.6-liter V6, four-stroke, DOHC with Variable Camshaft Timing (VCT).

• Fuel System: Direct Fuel Injection (DFI) for precise and efficient fuel delivery.

• Shaft Length: Available in standard, long, and extra-long configurations to fit various hulls.

• Weight: Approximately 612 lbs (278 kg), balancing power and handling.

• Trim & Tilt: Full power trim and tilt system for easy shallow water navigation and trailering.

• Steering Compatibility: Supports mechanical, hydraulic, and digital electronic controls.

• High-Output Alternator: Ensures sufficient power for onboard electronics and accessories.

• Ignition System: Microcomputer-controlled CDI for reliable starts.

• Exhaust: Underwater exhaust for quieter operation and improved efficiency.

• Durability: Premium anti-corrosion materials and advanced coatings protect against saltwater damage.

• Maintenance: Includes a freshwater flush system for easy upkeep.

Performance & Advantages

1. Powerful Acceleration – The V6 engine with VCT provides strong low- and mid-range torque, ideal for planing, towing, and high-speed cruising.

2. Fuel Efficiency – Direct Fuel Injection technology optimizes fuel consumption, giving better mileage without sacrificing power.

3. Durability & Reliability – Designed to endure harsh marine environments with corrosion-resistant materials and a robust engine build.

4. Versatile Applications – Perfect for center consoles, offshore sportfishing boats, luxury cruisers, and commercial vessels.

5. Smooth & Quiet Operation – Optimized intake, exhaust, and vibration control for a comfortable ride.

Specifications

• Engine Type: 3.6L V6, four-stroke, DOHC with Variable Camshaft Timing

• Horsepower: 300 HP

• Shaft Length: Standard, Long, Extra-Long

• Weight: ~612 lbs (278 kg)

• Fuel System: Direct Fuel Injection (DFI)

• Compression Ratio: 10.5:1

• Ignition: Microcomputer CDI

• Alternator Output: High-output for electronics

• Starting System: Electric

• Steering: Compatible with mechanical, hydraulic, or digital electronic controls

• Trim & Tilt: Full power trim and tilt

• Exhaust: Underwater

• Maintenance Features: Freshwater flush system, anti-corrosion design

Ideal Applications

The F300UCB2 is best suited for:

• Offshore sportfishing boats and recreational fishing vessels

• Center consoles and high-performance cruisers

• Towing and watersports applications

• Commercial and utility boats requiring reliable midrange horsepower

Conclusion

The Yamaha 300HP F300UCB2 outboard is a high-performance, reliable, and technologically advanced engine that delivers power, precision, and efficiency for serious boaters. Its V6 engine, direct fuel injection, and durable marine construction make it a dependable choice for offshore adventures, heavy-duty recreational boating, and commercial applications alike.