Yamaha 300HP Outboard Motor

Yamaha 300HP Outboard Motor

General Information

• Condition: New and Used
• Engine Type: V6
• Displacement: 4.2L (254 ci)
• Bore x Stroke: 96 x 96 mm (3.78 x 3.78 in.)

Performance

• Prop Shaft Horsepower: 300 hp at 5500 rpm (F/LF300)
• Compression Ratio: 10.3:1
• Full Throttle RPM Range: 5000 ~ 6000 rpm

• Yamaha 300HP Outboard Motor

Fuel and Ignition

• Fuel Induction: DOHC Fuel Injection with Variable Camshaft Timing (VCT)
• Recommended Fuel: Regular Unleaded (Minimum Pump Octane 89)
• Fuel Filtration: Yamaha 10-Micron Fuel/Water Separating Filter (external)
• Ethanol Blend Limit: 10% Maximum
• Ignition: TCI Micro Computer
• Spark Plug: LFR6A-11-00-000

Exhaust and Intake

Yamaha 300HP Outboard Motor

• Exhaust: Through Propeller
• Intake: Single Throttle Valve

Electrical System

• Alternator Output: 70 Amp
• Starting System: Electric

Lubrication and Cooling

• Lubrication: Wet Sump
• Engine Oil Capacity: 6.3L/6.0L with filter
• Cooling: Water/Thermostatic Control
• Recommended Engine Oil: Yamalube® 4M (See owner’s manual)

Gear and Shaft Specifications

Yamaha 300HP Outboard Motor

• Gear Ratio: 1.75:1 (21:12)
• Gear Shift: Forward, Neutral, Reverse
• Shaft Length: 25 in.

Tilt and Trim

• Degree of Tilt: 67 degrees
• Degree of Trim: -3 degrees through +16 degrees

Additional Information

• C.A.R.B. Rating: 3-Star
• Dry Weight: 255 kg (562 lb.)
• Mounting Centers: 28.5 in.
• Steering Angle (maximum): 32 degrees from center, either direction

Conclusion

The Yamaha 300HP Outboard Motor is a robust and efficient choice for those seeking high performance in a used engine. With its advanced fuel induction system, reliable ignition, and durable construction, it remains a top option for various boating applications.

Key Features

• Engine Specifications:
  • Type: 4.2-liter V6
  • Valves: 24 valves
  • Horsepower: 300 hp
• Advanced Technologies:
  • Variable Camshaft Timing (VCT):
    • Optimizes power and torque across the entire RPM range, ensuring responsive performance.
  • Precision Multi-Point Fuel Injection (EFI):
    • Provides efficient fuel delivery for enhanced performance and fuel economy.
• Digital Electronic Control (DEC):
  • Offers smooth and precise throttle and shift control, enhancing the overall boating experience.
• Compatibility with Helm Master® System:
• • Yamaha 300HP Outboard Motor Integrates advanced steering and control features, including joystick control and autopilot functionality for superior maneuverability.
• Durable Construction:
  • Built to withstand harsh marine environments with corrosion-resistant materials, ensuring longevity and reliability.
• Easy Maintenance:
  • Convenient access to oil and fuel filters facilitates routine maintenance.
  • Equipped with a freshwater flushing system to extend the engine’s lifespan.

Yamaha 300HP Outboard Motor

• High Performance: The powerful 300 hp output is ideal for larger boats requiring robust propulsion.
• Fuel Efficiency: Advanced fuel injection technology maximizes fuel economy, making it cost-effective for long-term use.
• User-Friendly: The DEC system and Helm Master® compatibility provide intuitive control, making it easier for both novice and experienced boaters.
• Reliability: Yamaha’s reputation for quality ensures that this outboard motor will perform reliably under various conditions.

Conclusion

The Yamaha 300HP Outboard Motor is an outstanding choice for boat enthusiasts who need a powerful, reliable, and efficient engine. With its advanced technologies, durable construction, and ease of maintenance, it stands out as a top-tier option for any boating application.