2025 Yamaha Marine F300 Base

2025 Yamaha Marine F300 Base

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  • Year 2025
  • Make Yamaha Marine
  • Model F300
2025 Yamaha Marine F300 Base

2025 Yamaha Marine F300 Base

2025 Yamaha Marine F300

Yamaha's next-generation 4.2-litre F300 Offshore outboard combines a high performance, big block V6 featuring outstanding power and fuel efficiency with the availability of Yamaha-exclusive built-in Digital Electric Steering and Thrust Enhancing Reverse Exhaust system.

Features may include:

KEY
  • The same smooth, fast, and precise Digital Electric Steering that was introduced on the XTO Offshore is now built-in to F300 variants. DEC models can be equipped with the new bolt-on Helm Master® EX Digital Electric Steering as well.
  • Thrust Enhancing Reverse Exhaust (TERE) keeps exhaust bubbles above the anti-ventilation plate and out of the propeller below 2500 rpm when in reverse. This means the prop bites only clean water, resulting in outstanding reverse thrust and control to back down on fish.
  • Faster, easier engine tilting with Yamaha’s exclusive TotalTilt™ function, which allows complete tilt up from any position with a simple push of a button.
  • Stunning new looks meet proven performance to compliment and complete even more premium boats.
MORE FLEXIBILITY, MORE CONTROL
  • The new Helm Master EX DEC control brings modern amenities like speed control, trim assist and station selection to all DEC installations, in addition to useful convenience features like single-lever operation and centre engine only to multi-engine DEC applications.
ENHANCED RELIABILITY AND DURABILITY
  • Even after a decade of proven performance, the new 4.2-litre V6 Offshore has an improved lower unit featuring new components and design features that add durability, further increasing consumer confidence.
IMPROVED TOP SPEED POTENTIAL
  • Compatible with Yamaha’s new Saltwater Series II(TM) HP propeller, faster top speed without sacrificing acceleration is possible for lighter weight V6 Offshore applications where the propeller rides fully submerged, while the built-in Shift Dampener System (SDS®) helps keeps shifting smooth and quiet.
INCREASED COOLING CAPACITY
  • Yamaha V6 Offshore models come standard with dual pairs of water inlets, for increased cooling efficiency. Located on the front and both sides of the lower unit, each pair of pick-ups operate independently of each other to provide proper water flow in a wide variety of applications and conditions.
RELIABILITY AND EFFICIENCY
  • 4.2 litres of class-leading displacement teams with individual intake and exhaust camshafts to provide more precise valve timing control with fewer moving parts than conventional rocker arm systems for increased reliability. This superior design also allows for use of 4 valves per cylinder which exchange intake and exhaust gases more efficiently for responsive power and increased fuel economy.
OUTSTANDING FUEL ECONOMY
  • All air entering the engine block of each Yamaha V6 Offshore outboard is routed through a single 75mm electronically-controlled throttle valve. Working in concert with the Precision Multi-Point Fuel Injection System, these features help ensure the precise amount of air and fuel necessary for optimum power and fuel ef?ciency. The reduction in friction from the micro-textured cylinder walls further adds to this outboard’s amazing fuel economy.

Engine

Engine Type 4-stroke DOHC V6 24 valves
Displacement 4,169 cc (254.4 ci)
Bore 3.78 in (96 mm)
Stroke 3.78 in (96 mm)
Compression Ratio 10.3 : 1
Rated Engine Speed Full RPM Range: 5,000-6,000 | Variable trolling: 600-1,000
Exhaust Through Propeller boss
Ignition TCI Microcomputer
Induction DOHC / 24 valves direct action with variable camshaft timing (VCT)
Oil Type Recommended: Yamalube 4-M FC-W 10W-30
Lubrication Wet sump
Cooling Raw water, Thermostatic Control
Gear Ratio (Primary) 21/12 (1.75:1)
Gear Shifter F/N/R

Electric

Starter System: Electric
Alternator Output, Maximum 70 Amps

Fuel System

Fuel System Delivery: Multi-point electronic fuel injection
Fuel Type Recommended: Unleaded Gasoline (Minimum Pump Octane 89)

Dimensions

Length Shaft: X = 25" / U = 30"
Dimensions Degree of Trim/Tilt: -3° through +16°/70° w/PTT

Capacities

Oil Capacity (w/filter) 6.3 L

Weights

Dry Weight Regular DEC: X = 562 lbs (255 kg) U = 575 lbs (261 kg) / DEC w/ DES: X = 611 lbs (277 kg) U = 624 lbs (283 kg)

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