YAMAHA F25 Outboard Engine
The Yamaha F25 is a versatile and reliable outboard engine that is ideal for a variety of different boating applications. With a displacement of 432cc and a horsepower rating of 25, this engine is well-suited to small boats, fishing vessels, and other recreational watercraft.
One of the key features of the Yamaha F25 engine is its fuel efficiency. The engine utilizes Yamaha’s advanced fuel injection system, which ensures precise and efficient fuel delivery, resulting in improved fuel economy and reduced emissions. This makes the F25 an ideal choice for boaters who are looking to save money on fuel costs and reduce their environmental impact.
In addition to its fuel efficiency, the Yamaha F25 engine also offers excellent performance and handling. The engine features Yamaha’s Digital Electronic Control (DEC) system, which provides precise and responsive control over engine speed and direction, as well as smooth and quiet operation. The engine also features advanced hydraulic steering systems, which make maneuvering small boats and vessels easy and intuitive.
| ENGINE TYPE | Two-Cylinder, In-line |
|---|---|
| DISPLACEMENT | 432cc / 26.4ci |
| BORE & STROKE | 5 x 65.1mm / 2.554 x 2.558in |
| RPM RANGE | 5000-6000 |
| COMPRESSION RATIO | 9.3:1 |
| INDUCTION SYSTEM | SOHC, 2 valves per cylinder |
| ALTERNATOR OUTPUT | 16 amp |
| FUEL DELIVERY | Battery less EFI |
| STARTING | Manual or Electric |
| IGNITION | CDI Microcomputer |
| LUBRICATION | Wet sump |
| DEGREE OF TRIM/TILT | -3° through 16° (PTT) 4 positions (manual tilt) -3° through 63° (PTT) -4 through 62° (manual tilt) |
| EXHAUST | Through Propeller |
| COOLING | Water/Thermostatic Control |
| GEAR SHIFT | F/N/R |
| GEAR RATIO | 27:13 / 2.08:1 |
| RECOMMENDED FUEL | Regular Unleaded (Minimum Pump Octane 87) |
|---|---|
| RECOMMENDED OIL | Yamalube® 4-M 10w-30 |
| OIL CAPACITY | 1.1L / 1.0L (w/without filter) 1.2qt / 1.05qt (w/without filter) |
The Yamaha F25 engine is also designed for durability and reliability. The engine features a high-output alternator, which provides ample power to run electrical accessories and charge batteries. The engine is also equipped with a maintenance-free oil bathed timing chain, which eliminates the need for periodic chain adjustments and ensures long-lasting performance.
Overall, the Yamaha F25 outboard engine is a versatile and capable choice for boaters who are looking for a reliable and fuel-efficient engine for their small boats and recreational watercraft. Its advanced features and durable
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