2025 Yamaha Outboards F25 hp Base

2025 Yamaha Outboards F25 hp Base

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  • Year 2025
  • Make Yamaha Outboards
  • Model F25 hp
2025 Yamaha Outboards F25 hp Base

2025 Yamaha Outboards F25 hp Base

2025 Yamaha Outboards F25 hp

The marsh rustles in the fall breeze as you deploy your decoys. There’s nothing like a trusty Yamaha Portable outboard for a crisp day of fishing or duck hunting. Yamaha’s Portable F25, F20 and F15 pack impressive power-to-weights and all the advantages of Yamaha’s award-winning, portable design, including carrying handles, incredibly light weights and more. The F25 even comes in matte brown, in case stealthy is part of the ask. No matter what’s ahead, your Yamaha Portable will be ready to go.

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.

Features may include:
  • Now available in new pearlescent white and matte brown*, in addition to Yamaha gray
  • Only 126 pounds (15” shaft model)
  • Available in 15” and 20” shaft lengths and in a High-Thrust design (T25)
  • Powerful 16-amp alternator
  • Variable Trolling RPM Switch (VTS®) accessible depending on rigging
  • Select models, including 15-inch shafts, feature a shorter tiller with Power Trim & Tilt and a tilt-up feature for ease in small spaces

Power and Performance

Efficient Power

The F25, F20 and F15 all feature a two-valve-per-cylinder, single-overhead-camshaft design that provides better breathing and more power.

Optimum Performance

An optimally balanced crankshaft and labyrinth exhaust deliver smooth power, while Microcomputer Ignition adjusts timing to maintain maximum engine performance, economy and power under all conditions.

Streamlined Intake

An intake silencer and manifold on the F20 and F15 result in more direct airflow, for minimum noise and maximum power.

Convenience and Control

MAX MANEUVERABILITY

A 45-degree steering angle in each direction means great maneuvering potential.

EASY ENGINE FLUSHING

A Freshwater Flush Device allows you to flush the engine without running it, for added convenience and extended engine life.

PORTABILITY AND STORAGE

Incredible light weights, built-in resting pads and carry handles, an easy oil retention system and an optional folding tiller handle, allow for easy carrying and on-side storage without oil leakage or cowling scuffs.

Engine

Engine Type 2 cyl
Engine Power Prop Shaft: 25 hp at 5500 rpm
Displacement 432cc
Bore 2.56 in (65 mm)
Stroke 2.56 in (65.1 mm)
Compression Ratio 9.3:1
Throttle Full RPM Range: 5000 - 6000 rpm
Steering Angle (maximum): 45° from center, either direction
Exhaust Through Propeller
Ignition CDI Microcomputer
Oil Type Recommended: Yamalube® 4M (See owner's manual)
Lubrication Wet Sump
Cooling Recommended: Thermostatic Control
Gear Ratio (Primary) 2.00:1
Gear Shifter Forward, Neutral, Reverse
Induction EFI

Spark Plug

Spark Plug DPR6EB-9

Electric

Starter System: Electric & Manual
Alternator Output, Maximum Output at W.O.T.: 16 amp

Fuel System

Fuel System Ethanol Blend Limit: 10% Maximum
Fuel Type Recommended: Octane 87 | Recommended Filtration: Yamaha 10-Micron Fuel/Water Separating Filter (external)

Dimensions

Length Shaft: 15" - 20"
Dimensions Degree of Tilt: 62° - 63° | Degree of Trim: -3° through +16°

Capacities

Oil capacity 1.1L/1.0L

Weights

Weight 126 lbs (57 kg) - 143 lbs (65 kg)

Features

Features Intake: 4

Warranty

Warranty Limited 3-year Pleasure, 3-year Government, 1-Year Commercial

Product Photography