Yamaha F350XSA 350HP – DEC 25″ Shaft Standard Rotationin Gray

Yamaha F350XSA 350HP Integrated Steering

The Yamaha F350XSA 350HP outboard motor is a masterpiece of digital marine propulsion featuring a precision-engineered V6 4.3L 24-valve DOHC engine architecture in Classic Gray. This high-performance powerhead utilizes a massive 4.3-liter displacement while maintaining a competitive dry weight of 529 lbs to ensure an elite power-to-weight ratio for modern offshore vessels. Its 25-inch shaft configuration is specifically designed for high-performance platforms requiring advanced outboard engine technology for the precision and smoothness of integrated digital electric steering.

Technical Specifications of Yamaha F350XSA

• Robust V6 4.3L DOHC architecture delivers 350 horsepower with high volumetric marine efficiency.
• Sophisticated 240 kg design includes a 25-inch long shaft for offshore boat transom configurations.
• Precision Multi-Point EFI ensures consistent combustion across the 5000-6000 throttle RPM band.
• Integrated Digital Electric Steering (DES) provides effortless vessel handling and precise control at all speeds.
• Digital Electronic Control (DEC) and Helm Master EX compatibility allow for smooth shifting and helm management.
• Massive 50-70 amp alternator output ensures navigation displays and digital electronics remain fully powered.
• Investment is protected by a limited 3-year factory warranty and Japanese maritime engineering excellence.

V6 4.3L Integrated Command

The F350XSA utilizes a 24-valve V6 configuration within its robust 4.3-liter engine block to maximize air intake and torque. This mechanical design ensures rapid and responsive hole-shot acceleration even when pushing heavily loaded offshore vessels through chop. Captains experience smooth power delivery and significantly reduced vibration when cruising through heavy coastal sea conditions with integrated digital command.

Integrated DES Steering

This 350HP outboard features Integrated Digital Electric Steering (DES) to provide a smooth and responsive boating experience without external hydraulic lines. This digital electric steering system provides a clean bilge while offering adjustable steering friction for the captain. Professional anglers can enjoy effortless vessel command during long offshore tournament days without operator fatigue.

25-Inch Offshore Shaft

The Yamaha 350HP motor integrates a 25-inch long shaft explicitly calibrated for modern offshore vessel transom dimensions. This optimal lower unit depth prevents propeller aeration in following seas while maintaining a secure grip on the water surface. US offshore boaters gain improved steering authority and stable tracking during aggressive maneuvers in open sea conditions during transit.

Helm Master EX Integration

The 350HP outboard is fully compatible with Yamaha Helm Master EX for advanced vessel positioning and joystick control at the helm. This system allows for precise movement in tight quarters and automated fishing patterns for serious pelagic anglers. Captains can easily manage multiple outboards and integrate with digital displays for a complete and modern luxury helm solution.

Routine Maintenance Protocol

This Digital V6 engine is built with high-quality sacrificial anodes to prevent destructive galvanic corrosion daily. Regular maintenance of the power trim and tilt system ensures smooth engine adjustments in saltwater coastal environments. Pro Tip: Flush the engine with fresh water after every launch to maintain the cooling system and protect internal components from salt accumulation.