Description
A 150 Yamaha outboard engine is a popular, versatile four-stroke outboard motor known for reliability and efficiency. It features an inline 4-cylinder engine with a displacement of around 2.8 liters and is available in various models with mechanical or digital electronic controls, different shaft lengths, and integrated steering options. Key specifications include a horsepower of 150 at 5500 rpm, a full throttle RPM range of 5000-6000 rpm, and a 2.00:1 gear ratio.
Key features and specifications
- Engine Type: In-line 4-cylinder, four-stroke
- Displacement: Approximately 2.8 liters (2670cc)
- Horsepower: 150 hp @ 5500 rpm
- Full Throttle RPM Range: 5000-6000 rpm
- Gear Ratio: 2.00:1
- Weight: Approximately 221-226 kg (487-493 lbs)
- Fuel: Recommended Octane 87 (with a maximum 10% ethanol blend limit)
- Lubrication: Wet sump
- Alternator Output: 35-50 Amps
- Cooling: Thermostatic
- Spark Plug: NGK-LFR6A-11 or LFR5A-11
Control and steering
- Available with mechanical controls or Digital Electronic Control (DEC)
- Integrated hydraulic or integrated electro-hydraulic steering options are available on newer models, which can clean up the bilge area and offer better performance
- Digital Electronic Control (DEC) models can be compatible with Helm Master EX Autopilot/Joystick system
Shaft length and model variations 150 Yamaha Outboard Engine
- Available with different shaft lengths, typically 20-inch or 25-inch (X) options
- Multiple models are offered, including those with Digital Electronic Control (DEC) and counter-rotating options
With impressive power-to-weight, volumetric efficiency, and integrated steering, this In-Line Four is the perfect, lightweight 150-hp solution for small- to medium-size boats. Its unique Variable Camshaft Timing (VCT) improves intake and exhaust efficiency and boosts torque throughout the rev range.
- Comes with integrated electro-hydraulic steering for digital models and integrated hydraulic steering for mechanical models
- Runs on economical 89 octane
- Only 525 pounds (20” shaft DEC model)
- 20” or 25” shaft options
- 50-amp alternator provides plenty of power for onboard electronic . Get unmatched reliability Wikipedia



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