Specifications
Performance
Engine
Bracket/Drive
Features
Its 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 balanced design smooth air flow and responsive power.
A camshaft profile with a higher valve lift allows for longer opening duration for intake and exhaust. Combined with reimaged valve lifters it creates precise clearance for increased combustion.
A new clutch dog design machined with more teeth which increases torque transfer from powerhead to propeller.
Our 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.
Iridium spark plugs work together with Yamaha's new fuel injection control mapping to produce a lengthened injector duration for more power.
Gallery
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