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Massive power and torque from the world's biggest horsepower outboard.
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The first 60° V8 four stroke outboard engine ever, with a displacement of 5,330 cc and a DOHC, 32valve format.
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In-Bank Dual Exhaust with Power Surge Chambers, a system that relieves pressure in the exhaust ports to increase power output.
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Variable camshaft timing to greatly increase engine torque at low and mid-range rpm.
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Up to 45 percent more thrust than conventional 250-hp class four-stroke outboards. (Yamaha comparison)
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Specially designed Saltwater XL Series propellers with significantly larger diameter and blade area to bring out the full performance potential of the F350.
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Outstanding Yamaha durability and reliability
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Larger gear shaft adopted for greatly increased strength
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Forged motor mounts and oversized mounting bracket for outstanding durability and excellent noise and vibration reduction.
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Strategically placed sacrificial anodes and exclusive electrophoretic painting finish applied throughout the motor for outstanding corrosion protection.
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Ionic Combustion Sensor adopted for the first time on an outboard to detect the production of ions and enable adjustments to maintain good combustion.
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To accommodate the increased displacement, a larger thermostat, large-capacity water pump and dual-course coolant supply system are adopted to improve cooling capacity.
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Exclusive new-design Drain System adopted inside the cowling to quickly drain away any water that gets inside the cowling and reduce the amount of water intrusion to one-tenth that of conventional outboards. (Yamaha comparison)
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Outstanding operability and convenience for more enjoyable cruising
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Newly developed Yamaha Digital Network System for lighter, more enjoyable operability as well as great reliability.
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Variable Trolling RPM control function as standard equipment for optimum idling adjustment.
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Automatic multi-engine (up to 3 engines) rpm synchronization function.
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Tilt Limiter function as standard equipment to enable free adjustment of the tilt angle to accommodate different boat mounting well shapes.
