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Convenience and Control

• EASY RIGGING: In-Line Four V MAX SHO® outboards feature mechanical controls for easy, convenient rigging with most bass, bay and flats boats, and are compatible with analog, 6Y5 digital or Command Link® gauges.

Features

• Prop shaft horsepower - 90 hp at 5,500 rpm
• Compression ratio - 10.0:1
• Recommended fuel - Regular unleaded (minimum pump octane 87)
• Recommended fuel filtration - Yamaha 10-micron fuel / Water separating filter (external)
• C.A.R.B. rating - 3-Star
• Intake - 16
• Spark plug - LFR5A-11
• Ethanol blend limit - 10% maximum
• Degree of tilt - -4° through +66°
• Mounting centers - 26 in.
• Compatible controls - Mechanical
• Compatible gauges - Digital and analog

Power and Performance

• QUIET POWER AND PERFORMANCE: The In-Line Four V MAX SHO® design maximizes combustion efficiency in a way that no two stroke can, delivering clean, quiet power and performance.
• FUEL EFFICIENT: In-line Four V MAX SHO® designs are up to 40% more fuel efficient than traditional carbureted two strokes.
• OPTIMUM POWER: Precision Multi-Point Electronic Fuel Injection and long-track intake system combine to maximize power and fuel efficiency across the line of In-Line Four V MAX SHO® outboards.
• POWER MANAGEMENT: An array of advanced sensors constantly provide vital atmospheric and engine conditions to the Engine Control Module (ECM), which instantly makes the precise adjustments for optimum performance.

Reliability & Durability

• UNBEATABLE RELIABILITY: The In-Line Four V MAX SHO® 175 and 150 feature a Cowling Drain System and Air Intake Labyrinth System to trap and drain water that enters their cowlings during normal operation.
• BETTER LUBRICATION: Wet sump pump lubrication that uses a pressurized oil delivery system through an oil pump.
• ENGINE WARNING SYSTEM: This system protects the outboard with a range of functions including: overheat protection and low-oil-pressure warning (automatically reducing maximum RPM to 2000), over-rev protection, water-in-fuel detection, start-in-gear protection and shift-in prevention at open throttle.
• CORROSION PROTECTION: Combined with our proprietary alloy (YDC-30), our exclusive Phaze Five™ electro-deposited, anti-corrosive paint system provides a tough, five-layer barrier against corrosion. This protection is standard on all Yamaha In-Line Four V MAX SHO® engines.
• SMART DESIGN: A tilt stop lever on the In-line Four V MAX SHO® 175 and 150 preserves the hydraulics by taking the pressure off them during maintenance, trailering or extended storage.