Description
Key Features
Responsive Power: It’s center-mounted 81mm electronic throttle valve is eight percent larger than the F300. Flanked by identical port and starboard intake manifolds, it creates a well-balance design, smooth air flow and responsive power.
Increased Combustion: A camshaft profile with a higher valve lift allows for longer opening duration for intake and exhaust. Combined with reimagined valve lifters, it creates precise clearance for increased combustion.
Max Torque: A new clutch dog design, machined with more teeth, increases torque transfer from powerhead to propeller.
Charging Power: Yamaha’s 4.3L V6 Offshore F350’s 70-amp alternator produces more than 30 net amps per outboard at idle—nearly double that of Yamaha’s other comparable outboards.
More Power:I ridium spark plugs work together with Yamaha’s new fuel injection control mapping to produce a lengthened injector duration for more power.
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