Description

Yamaha Outboards 300HP LF300XSB – Midrange High-Performance Outboard

The Yamaha LF300XSB is a powerful and technologically advanced 300-horsepower outboard engine designed for high-performance recreational and commercial vessels. Combining Yamaha’s renowned reliability, advanced fuel efficiency, and superior acceleration, this outboard is ideal for boats that demand both strength and precision on the water.

Engine & Design

The LF300XSB features a 3.6-liter V6, four-stroke engine with Variable Camshaft Timing (VCT), providing strong torque across the entire RPM range. Yamaha’s Direct Fuel Injection (DFI) ensures precise fuel delivery for clean, efficient combustion, resulting in impressive acceleration, high top-end speeds, and reduced emissions.

The engine is built for durability, incorporating Yamaha’s cast-aluminum alloy construction and corrosion-resistant coatings to withstand harsh marine environments, making it suitable for both saltwater and freshwater operation.

Key Features

• Horsepower: 300 HP at approximately 5,500 RPM, delivering strong acceleration and high cruising speed.

• Engine Type: 3.6-liter V6, four-stroke, DOHC with VCT.

• Fuel System: Direct Fuel Injection (DFI) for smooth throttle response and optimized efficiency.

• Shaft Length: Available in standard or long (XSB) shaft lengths to accommodate different hull designs.

• Weight: Approximately 612 lbs (278 kg), balancing power with maneuverability.

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

• Steering: Compatible with both mechanical and digital electronic controls.

• Alternator Output: High-output alternator to power onboard electronics and accessories.

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

• Exhaust System: Underwater exhaust reduces noise and improves efficiency.

• Durability: Yamaha’s anti-corrosion coating and premium materials ensure longevity.

• Maintenance: Features a freshwater flush system for easy maintenance after use.

Performance & Advantages

1. Powerful & Smooth Acceleration – The V6 engine with VCT provides responsive throttle and strong torque from low to high RPM, making it ideal for planing, towing, and high-speed cruising.

2. Fuel Efficiency – Direct Fuel Injection technology ensures optimal fuel use, maximizing distance per tank while reducing emissions.

3. Durable & Low Maintenance – Engineered for harsh marine environments, with protective coatings, corrosion-resistant alloys, and a simple-to-use freshwater flush system.

4. Versatile Applications – Works well on large center consoles, offshore sportfishing boats, luxury cruisers, and commercial workboats.

5. Smooth & Quiet Operation – Carefully designed intake, exhaust, and engine components reduce vibration and noise, providing a comfortable ride for passengers.

Specifications

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

• Horsepower: 300 HP

• Shaft Length: Standard or Long (XSB)

• Weight: ~612 lbs (278 kg)

• Fuel System: Direct Fuel Injection (DFI)

• Compression Ratio: 10.5:1

• Ignition: Microcomputer CDI

• Alternator Output: High-output for onboard electronics

• Starting System: Electric

• Steering: Compatible with mechanical or digital electronic controls

• Trim & Tilt: Power Trim and Tilt

• Exhaust: Underwater

• Maintenance Features: Freshwater flush, corrosion-resistant design

Ideal Applications

The Yamaha LF300XSB is perfect for:

• Offshore sportfishing and recreational boats

• Center consoles and high-performance cruisers

• Towing and water sports applications

• Commercial or workboats requiring reliable midrange horsepower

Conclusion

The Yamaha LF300XSB 300HP outboard combines cutting-edge technology, superior reliability, and robust power for a wide range of marine applications. With its V6 engine, direct fuel injection, and durable construction, it offers unmatched performance, fuel efficiency, and handling, making it a trusted choice for serious boaters who demand both power and precision on the water.