Yamaha Outboards F2.5

Overview

Yamaha's smallest Portables, the F6, F4 and F2.5, weigh in at as little as 37 pounds, with streamlined overhead-valve, one-cylinder designs. Their light weights, combined with built-in carrying handles, resting pads, and an oil-leak prevention system for on-side storage capability create true portability. Add to that their efficiency, performance, and reliability, and these pint-sized powerhouses are perfect for all sorts of light-duty, like hopping to the cuddy on a tender. Wherever the day takes you, you can take along a little extra power with an F6, F4, or F2.5 Yamaha Portable.

Specifications

Engine Type 1 cyl

Displacement 72cc

Bore x Stroke 54 x 31.5 mm (2.13 x 1.24 in)

Prop Shaft Horsepower 2.5hp at 5500 rpm

Full Throttle RPM Range 5250 ~ 5750

Alternator Output at W.O.T. N/A

Compression Ratio 8.8:1

Fuel Induction System Carb

Weight* 17 kg (37 lbs) - 20 kg (40lbs)

Recommended Fuel Octane 87

Recommended Engine Oil Yamalube(r) 4M (See owner's manual)

Recommended Fuel Filtration N/A

C.A.R.B. Rating 2-Star

Exhaust Above Propeller

Intake 2

Ignition TCI

Spark Plug CR6HSB

Alternator Output N/A

Starting System Manual

Lubrication Splash

Engine Oil Capacity 0.35L

Recommended Cooling Thermostatic Control

Ethanol Blend Limit 10% Maximum

Gear Ratio 2.01:1

Gear Shift Forward, Neutral

Shaft Length 15" - 20"

Degree of Tilt 79°

Degree of Trim -4° through +16°

Dry Weight 15" shaft / 17 kg (37 lbs), 20" shaft / 20 kg (40 lbs)

Mounting Centers N/A

Steering Angle (maximum) 360° from center, either direction

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