Yamaha / FourStroke

Yamaha F25

Name: Yamaha F25
Brand: Yamaha
SKU: f25
Availability: InStock

Our 432-cc 25-hp portable outboard features a streamlined, portable design and class-leading power-to-weight.

All Yamaha outboards

FourStroke

F25

Power: 25 hp
Configuration: 2 cyl
Displacement: 432cc
Weight: 57kg (126 lbs) - 65kg (143 lbs)

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About this engine

Our 432-cc 25-hp portable outboard features a streamlined, portable design and class-leading power-to-weight. While it’s 25 percent lighter than its previous design, it still packs exciting features like battery-less EFI. Pull-start models can now take advantage of this feature, plus the system is designed with an automatic decompression device to require even less effort for manual starting.

Key features

Efficient Power
Optimum Performance
Streamlined Intake
Responsive Acceleration
MAX MANEUVERABILITY
EASY ENGINE FLUSHING
PORTABILITY AND STORAGE

Full specifications

Weight †: 57kg (126 lbs) - 65kg (143 lbs)
Full Throttle RPM Range: 5000 - 6000
Fuel Induction System: EFI
Recommended Engine Oil: Yamalube® 4M (See owner's manual)
Engine Type: 2 cyl
Displacement: 432cc
Bore x Stroke: 65 x 65.1mm / (2.56 x 2.56 in)
Prop Shaft Horsepower: 25 hp at 5500 rpm
Alternator Output at W.O.T.: 16 amp
Compression Ratio: 9.3:1
Recommended Fuel: Octane 87
Recommended Fuel Filtration: Yamaha 10-Micron Fuel/Water Separating Filter (external)
C.A.R.B. Rating: 2-Star
Exhaust: Through Propeller
Intake: 4
Ignition: CDI Microcomputer
Spark Plug: DPR6EB-9
Starting System: Electric & Manual
Lubrication: Wet Sump
Engine Oil Capacity: 1.1L/1.0L
Recommended Cooling: Thermostatic Control
Ethanol Blend Limit: 10% Maximum
Gear Ratio: 2.00:1
Gear Shift: Forward, Neutral, Reverse
Shaft Length: 15" - 20"
Degree of Tilt: 62° - 63°
Degree of Trim: -3° through +16°
Mounting Centers: N/A
Steering Angle (maximum): 45° from center, either direction
Warranty: Limited 3-year Pleasure, 3-year Government, 1-Year Commercial