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F2.5

Engine Type One Cylinder
Displacement 4.4 ci (72 cc)
Bore x Stroke 54 x 31.5mm (2.13 x 1.24 in)
Prop Shaft Horsepower 2.5 hp @ 5500 rpm
Compression Ratio 9.0:1
Fuel Induction Overhead Valve
Exhaust Above Prop
Intake Carburetor
Ignition TCI
Spark Plug B6HS0-00-00-000
Alternator Output N.A.
Starting System Manual
Lubrication Splash
Engine Oil Capacity 0.4L(0.42qt)
Full Throttle RPM Range 5250 ~ 5750 rpm
Cooling Water/Thermostatic Control
Recommended Engine Oil Yamalube® 4M (See Owner's Manual)
Recommended Fuel Regular Unleaded (Minimum Pump Octane 87)
Recommended Fuel Filtration Yamaha Mini 10-Micron Fuel/Water Separating Filter (external)
Gear Ratio (27:13) 2.08:1
Gear Shift Forward, Neutral
Shaft Length S=15"
Degree of Tilt 80°
Degree of Trim 4 positions
C.A.R.B. Rating 2-Star
Dry Weight 17kg (37 lbs)
Steering Angle (maximum) 360° from center, either direction
Warranty 3 Year Limited Pleasure Boat - 1 Year Limited Commercial
Spec Weight 7
Comparison Image

Yamaha Portables Description

Here’s why so many boaters carry Yamaha reliability with them, wherever they go:

Incredibly Light
Yamaha Portables are incredibly light, weighing as little as 37 pounds. Talk about punch you can pack.

Easy to Carry
Select models feature built-in front and rear carry handles for maximum portability. Plus, recent re-designs have made several of our portables, well, even more portable. The F9.9 is 12% lighter than previous designs, and we’ve trimmed 23 pounds from our F6.

Max Maneuverability
Our 5-Step Trim Adjustment and 3-Step Shallow Water Drive System (on select models) protects your propeller in skinny water, making these pintsized powerhouses extremely maneuverable and getting you where you need to go.





Fuel Efficiency
The smaller the motor, the less fuel it consumes, true. However, one of Yamaha’s portables actually made it into the Guinness Book of World Records for the most miles traveled on one gallon of gas, going 67.27 continuous statute miles.

Smart Innovation
Our Easy Oil Retention System allows the F6, F4 and F2.5 to be stored on their sides or front grip without oil leakage. Our F15 and F20 designs feature a water-cooled fuel pump, boosting power and preventing warm weather starting issues like vapor lock.

Contact US
441-295-3333
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