Yamaha Midrange F40 Four Stroke

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This versatile four stroke blends power and fuel efficiency with quiet performance and quick starts. It’s great for skiffs, jons, inflatables and small pontoons.

 

Engine Type In-Line Three Cylinder
Displacement (747cc) | 45.68 ci
Bore x Stroke 65 x 75mm (2.56 x 2.95 in)
Prop Shaft Horsepower 40 hp @ 5500 rpm
Compression Ratio 9.4:1
Fuel Induction Electronic Fuel Injection
Exhaust Through Propeller
Intake Single Throttle Valve
Ignition CDI Microcomputer
Spark Plug DPR6EB-9
Alternator Output 17 Amp
Starting System Electric w/PTT or Nitro Assist
Lubrication Wet Sump
Engine Oil Capacity 1.7L/ 1.5L without filter
Full Throttle RPM Range 5000 ~ 6000 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)
Ethanol Blend Limit 10% Maximum
Gear Ratio (26:13) 2.00:1
Gear Shift Forward, Neutral, Reverse
Shaft Length L = 20"
Degree of Tilt PTT Models: 66° Nitro-Assist: 65°
Degree of Trim -3° through +20° on "PTT" models. 5 postions on Nitro-Assist
C.A.R.B. Rating 3-Star
Dry Weight F40LA = 97kg (214 lbs) F40LEHA 101kg (223 lbs)
Steering Angle (maximum) 40° from center, either direction
Warranty 3-Year Pleasure, 3-Year Government, 1-Year Commercial