2024 Yamaha V6 4.2L 300HP – 25″ Shaft

Engine Type V6
Bore x Stroke 3.78 x 3.78 in. (96 x 96 mm)
Displacement 4.2 L
Starting Electric
Shaft Length 25 in.
Propshaft Horsepower 300 HP at 5500 RPM
Full Throttle Operating Range 5000 ~ 6000 RPM
Gear Ratio / Shift 1.75:1 / Forward, Neutral, Reverse
Fuel Induction EFI
Alternator 50 – 70 Amp
Warranty Limited 3-Year Pleasure, 3-Year Government, 1-Year Commercial
Category:

Description

DESCRIPTION

Yamaha’s award-winning V6 4.2-liter outboards have been offshore favorites for more than a decade. Initially, boaters were attracted to their power, efficiency and intelligent design. After years of proven performance, our V6 4.2-liters have become known for something perhaps even more valuable offshore—reliability. In fact, with legendary 96 percent reliability,** they’re one of the most trusted V6’s offshore. Well, now these trusty outboards are turning heads again, with a fresh new look and new, integrated digital electric steering—making them even more responsive. Our V6 Offshore outboards have proven once again that even a trusted favorite can take an exciting turn.

SPECIFICATIONS
  • 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
  • Full Throttle RPM Range: 5000 ~ 6000 rpm
  • Alternator Output at W.O.T.: 50 – 70 Amp
  • Compression Ratio: 10.3:1
  • Fuel Induction System: EFI
  • Weight *: 250 kg (551 lbs) / 254 kg (562 lbs) / 265 kg (588 lbs)
  • Recommended Fuel: Octane 89
  • Recommended Engine Oil: Yamalube® 4M (See owner’s manual)
  • 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
NOTES:

* Weight refers to shortest shaft length, and is measured without motor oil, gearcase oil and propeller (except models 25 hp and under, which include a standard propeller). All Jet model weights include the jet pump assembly (weight estimated).

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