4.2L V6 300 HP

4.2L V6 300 HP

Outboard
Overview

Our V6 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*, rerouted exhaust for enhanced reverse thrust and is available in Yamaha gray or pearlescent white. It’s destined to be a top choice offshore for years to come.

 

  • Recommended fuel: 89 Octane
  • Shaft lengths available: 25”, 30” and 35” (30" and 35” on F300 DEC only)
  • Alternator output: up to 70 amp

 

*Mechanical F225, F250, and F300 models remain unchanged and are available in gray only.

Weight250 kg (551 lbs) / 254 kg (562 lbs) / 265 kg (588 lbs)
Full Throttle RPM Range5000 ~ 6000 rpm
Fuel Induction SystemEFI
Recommended Engine OilYamalube® 4M (See owner's manual)
Engine TypeV6
Displacement4.2L
Bore x Stroke96 x 96mm (3.78 x 3.78 in)
Prop Shaft Horsepower300hp at 5500 rpm
Alternator Output at W.O.T.50 - 70 Amp
Compression Ratio10.3:1
Recommended FuelOctane 89
Recommended Fuel FiltrationYamaha 10-Micron Fuel / Water Separating Filter (external)
C.A.R.B. Rating3-Star
ExhaustThrough Propeller
Intake24
IgnitionTCI Microcomputer
Spark PlugLFR6A-11
Starting SystemElectric
LubricationWet Sump
Engine Oil Capacity6.3L/6.0L
Recommended CoolingThermostatic Control
Ethanol Blend Limit10% Maximum
Gear Ratio1.75:1
Gear ShiftForward, Neutral, Reverse
Shaft Length25" - 30" - 35" (F300 DEC Only)
Degree of TiltMechanical 67°, Digital Electric Steering 69°, Bolt-on steering 70°
Degree of Trim-3° through +16°
Mounting Centers28.5"
SteeringIntegrated, Electric Actuation
Steering Angle (maximum)32° from center, either direction
WarrantyLimited 3-Year Pleasure, 3-Year Government, 1-Year Commercial

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