Yamaha Outboards Midrange Four Stroke F25

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Nothing beats a day on the water with family and friends. And nothing powers those moments quite like Yamaha’s versatile line of midrange outboards. Ranging in size from the mighty F90 down to the nimble F25, they offer just the right amount of power for a variety of applications. These 2-, 3- and 4-cylinder dynamos are quiet, clean-burning, reliable performers. But that’s not all they have to offer.

Specifications are subject to change without notice

CONVENIENCE/CONTROL

Auto Decompression Device
External Tilt Switch “LA” Model
Freshwater Flush
Power Trim and Tilt “LA” Model
PrimeStart™
Spin On Oil Filter
Steering Friction lever (Tiller Handle Models)

POWER/PERFORMANCE

Counter Balance Technology
Four Stroke Engine Design
Labyrinth Exhaust
Long Span Mount System
SOHc
Tuned Intake Manifold

RELIABILITY/DURABILITY

5-Step Anti-Corrosion Paint Process
CDI Microcomputer
Engine Warning System
High Output Alternator
Magnetic Drain Plug
Sacrificial Anodes
SST Drive, Prop, Shift Shafts
SST Steering Tube
Thermostatic Controlled Cooling
Wet Sump Lubrication
YDC-30 Aluminum Alloy

There are no features available

Engine Specs

Engine Type : In-Line 2 Cylinder
Displacement : (498 cc) | 30.4 ci
Bore x Stroke : 65mm x 75mm | 2.56 x 2.95in
Prop Shaft Horsepower : 25 hp @ 5500 rpm
Compression Ratio : 9.4:1
RPM Range : 5000 ~ 6000 rpm
Fuel/Induction System : SOHC
Exhaust : Through Propeller
Intake : Carburetor
Cooling : Water/Thermostatic Control
Ignition System : CDI Micro Computer
Spark Plug : DPR6EB-9
Starting System : M = Manual | E = Electric
Lubrication : Wet Sump
Degree of Trim/Tilt : Manual : 5 Tilt Pin Positions Nitro Assist: 5 Tilt Pin Positions PTT: -3° through +16°/Manual: Up to 73° w/ 2-position Shallow Water Drive. PTT or Nitro Assist: Up to 73°
Oil Capacity : 1.6L/1.4L without filter
Recommended Engine Oil : Yamalube® 4M (See owner's manual)
Gear Shift : Forward, Neutral, Reverse
Gear Ratio : (27:13) 2.08:1
Shaft Length : S: 15", L: 20"
Recommended Fuel : Regular Unleaded (Minimum Pump Octane 87)
Steering Angle (maximum) : 42° from center, either direction
Weight : F25SMHA = 76kg (168lbs) F25SEHA = 79kg (174 lbs) F25SEA = 77 kg (170 lbs) F25LEA = 78kg (172 lbs) F25LA = 81kg (179 lbs) F25LMHB = 79kg (175 lbs) F25LEHB = 82kg (181 lbs)
CARB Rating : 3-Star
Warranty : 3-Year Pleasure, 3-Year Government, 1-Year Commercial
Alternator Output : 13AMP with Rectifier Regulator
Ethanol Blend Limit : 10% Maximum
Recommended Fuel Filtration : Yamaha Mini 10-Micron Fuel/Water Separating Filter (external)