300HP YAMAHA – Lagacy Outboard
$2,500.00
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Year: 2021 Horse Power: 300HP Number Of Stroke: 4 Hours Recorded: 60 Shaft: 30 Inches The condition is perfect. It includes full rigging such as harnesses, gauges, steering, controls, and oil tanks. In addition, the propellers are also included.
300HP Yamaha Legacy Outboard Engine – Maximum Power, Ultimate Performance
The 300HP Yamaha Legacy Outboard Engine is designed for boaters and professionals who demand unmatched power, reliability, and precision handling. Perfect for large recreational vessels, offshore fishing boats, and commercial workboats, this high-performance engine delivers exceptional acceleration, top-end speed, and smooth operation. Yamaha’s advanced engineering combines the trusted Legacy Series durability with cutting-edge four-stroke technology for reliable performance in all marine conditions.
With 300 horsepower, this engine provides the thrust and responsiveness needed to handle large boats efficiently. Its Electronic Fuel Injection (EFI) system ensures smooth starts, optimal fuel usage, and precise throttle response. Yamaha’s Legacy Outboard design emphasizes durability, low maintenance, and quiet operation, making it suitable for both recreational and professional applications.
Key Features
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High-Power 300HP Engine: Offers maximum thrust and superior vessel performance.
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Four-Stroke Technology: Efficient, reliable, and quiet for long-lasting operation.
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Electronic Fuel Injection (EFI): Smooth starts, responsive acceleration, and fuel efficiency.
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Power Trim & Tilt: Allows optimal adjustment of the engine angle for performance and fuel economy.
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Durable Construction: Corrosion-resistant materials withstand harsh marine environments.
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Lightweight for Its Class: Advanced materials reduce weight without sacrificing strength.
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Smooth and Quiet: Minimal vibration and noise for comfortable operation.
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Environmentally Compliant: EPA and CARB certified for low emissions.
Specifications
| Specification | Details |
|---|---|
| Engine Type | 4-Stroke, Legacy Series |
| Horsepower | 300 HP |
| Cylinders | V6 |
| Displacement | 4.2L |
| Fuel System | Electronic Fuel Injection (EFI) |
| Ignition | TCI (Transistor Controlled Ignition) |
| Cooling System | High-capacity water-cooled system |
| Gear Ratio | 1.75:1 – 2.0:1 |
| Max RPM | 5,500 – 6,000 |
| Starting System | Electric start with optional manual backup |
| Trim & Tilt | Power Trim & Tilt |
| Propeller | 3-blade or 4-blade aluminum/stainless steel |
| Weight | ~250–270 kg |
| Control | Remote control or joystick-compatible system |
| Compliance | EPA and CARB certified |
Performance and Benefits
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Rapid Acceleration: Provides fast takeoff for large vessels.
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High-Speed Cruising: Handles heavy loads efficiently and smoothly.
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Fuel Efficient: EFI and four-stroke design optimize fuel consumption.
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Reliable and Durable: Engineered to withstand offshore, coastal, and freshwater conditions.
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Quiet and Smooth Operation: Minimal vibration and noise improve comfort on long trips.
Applications
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Large recreational boats and luxury yachts
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Offshore and sportfishing vessels
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Commercial workboats requiring high reliability
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High-performance twin-engine vessels
Installation and Compatibility
The 300HP Yamaha Legacy Outboard is engineered for large transoms and can be paired with Yamaha high-performance propellers and remote control systems. Proper installation ensures maximum thrust, balanced handling, and fuel efficiency, whether used solo or in twin-engine configurations.
Maintenance Tips
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Regular oil and filter changes maintain engine longevity.
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Flush after saltwater use to prevent corrosion.
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Inspect propellers, gearcases, and trim systems for damage or debris.
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Ensure electrical connections are secure and free from corrosion.
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Use genuine Yamaha parts for all maintenance to preserve warranty and performance.
Warranty and Support
The Yamaha 300HP Legacy Outboard Engine comes with a manufacturer-backed limited warranty, covering defects in materials and workmanship. Registration ensures access to Yamaha-authorized service centers. Outboard Engine Guide provides professional guidance for installation, maintenance, and warranty claims to ensure seamless ownership.
Why Choose the 300HP Yamaha Legacy Outboard
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Maximum Power: 300HP delivers superior acceleration, speed, and load-handling.
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Fuel Efficient: EFI and four-stroke technology optimize fuel consumption for large vessels.
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Durable and Reliable: Engineered for demanding marine conditions.
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Smooth and Quiet: Minimal vibration and noise for enhanced boating comfort.
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Expert Support: Secure purchase, fast shipping, and dedicated technical assistance.
The 300HP Yamaha Legacy Outboard Engine is the ultimate choice for boaters and professionals who demand maximum power, reliability, and performance. With Yamaha’s trusted engineering and Outboard Engine Guide’s commitment to authentic products and expert support, this engine ensures your vessel performs at its peak in any marine environment.

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