BoatTest.com Yamaha Motor
F25 LA

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Yamaha Outboards in Action (Yamaha)
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This video has a lot of great footage of Yamaha outboard engines in action on a variety of boat mod...
F25 LA F25 LA
Yamaha Marine Group introduced two new 25-horsepower outboards, the four stroke F25 and four stroke, high thrust T25. The T The company says these engines are great for aluminum fishing boats, inflatables and small pontoons, these versatile outboards rival Yamaha’s two-strokes for top-end performance but offer the fuel efficiency and smoothness customers have come to expect from a four stroke.

Fast Facts
Type Four-Stroke, 4-Valve SOHC
Displacement 498 cc
30.4 c.i.
Max. RPM Range 5000 ~ 6000 rpm
HP Rating @ Propshaft 25 hp @ 5500 rpm
Gear Ratio 2.08:1 (27/13)
Dry Weight 170 ~ 181 lbs

Key Features

  • Compact/One-Piece Solid Cowling
  • Water Draining Air Intake Duct
  • Multi-Function Tiller Handle (F25LA: Optional)
  • Single Operation Steering Friction
  • Long-Span Mounting System
  • Micro-Computer Controlled Ignition
  • PrimeStart and Acceleration Pump
  • Advanced Cylinder Block and Head
  • Streamlined Tuned Intake Manifold
Boats Tested with this Engine
Alumacraft Lunker 165 CS (2009-)
Yamaha Motor F25 LA
Type Four-Stroke, 4-Valve SOHC
Recommended Fuel Regular Unleaded Gasoline (Minimum Pump Octane 87)
Horsepower Rating 25 hp @ 5500 rpm
Displacement 498 cc
30.4 c.i.
Dry Weight 170 ~ 181 lbs
Max. RPM Range 5000 ~ 6000 rpm
Alternator Output 12V-13.5 Amp with Rectifier Regulator
Shaft Length S: 15
Gear Ratio 2.08:1 (27/13)
Induction Technology 1-Carb with Acceleration Pump
CARB Rating 3-Star
Warranty 3-Year Pleasure
Engine Image

Yamaha Motor F25 LA

Have you used this engine? Give us your feedback/comments.
C. Stone 7/2/2009 5:15:25 PM
is electric trim and tilt available?