Yamaha

Yamaha / FourStroke

Yamaha F300

Our 4.2-liter F300 is a reliable, offshore favorite—and it's only getting better.

All Yamaha outboards
Yamaha F300

FourStroke

F300

Power
300 hp
Configuration
V6
Displacement
4.2L
Weight
250 kg (551 lbs) / 254 kg (562 lbs) / 265 kg (588 lbs)
AuthorizedYamahadealer
View on Yamaha site

About this engine

Our 4.2-liter F300 is a reliable, offshore favorite—and it's only getting better. It now features a fresh, new cowling design (with engine-mounted Propeller Indicator Lights if rigged with Helm Master® EX), new integrated digital electric steering*, and rerouted exhaust for enhanced reverse thrust. It’s destined to be a top choice offshore for years to come.

Key features

  • 4.2 Liter Big Bore Displacement
  • Fuel Efficiency
  • Light Weight
  • Throttle Response & Acceleration
  • Responsive Electric Steering
  • Precise and Convenient Trolling
  • More Functionality / Security
  • Top Speed and Smooth Shifting
  • Fast, Easy Tilting
  • Powerful, Precise Maneuvering

Full specifications

Weight †
250 kg (551 lbs) / 254 kg (562 lbs) / 265 kg (588 lbs)
Full Throttle RPM Range
5000 ~ 6000 rpm
Fuel Induction System
EFI
Recommended Engine Oil
Yamalube® 4M (See owner's manual)
Engine Type
V6
Displacement
4.2L
Bore x Stroke
96 x 96mm (3.78 x 3.78 in)
Prop Shaft Horsepower
300hp at 5500 rpm
Alternator Output at W.O.T.
50 - 70 Amp
Compression Ratio
10.3:1
Recommended Fuel
Octane 89
Recommended Fuel Filtration
Yamaha 10-Micron Fuel / Water Separating Filter (external)
C.A.R.B. Rating
3-Star
Exhaust
Through Propeller
Intake
24
Ignition
TCI Microcomputer
Spark Plug
LFR6A-11
Starting System
Electric
Lubrication
Wet Sump
Engine Oil Capacity
6.3L/6.0L
Recommended Cooling
Thermostatic Control
Ethanol Blend Limit
10% Maximum
Gear Ratio
1.75:1
Gear Shift
Forward, Neutral, Reverse
Shaft Length
25" - 30" - 35" (F300 DEC Only)
Degree of Tilt
Mechanical 67°, Digital Electric Steering 69°, Bolt-on steering 70°
Degree of Trim
-3° through +16°
Mounting Centers
28.5"
Steering
Integrated, Electric Actuation
Steering Angle (maximum)
32° from center, either direction
Warranty
Limited 3-Year Pleasure, 3-Year Government, 1-Year Commercial