139cc Single 4 HP

139cc Single 4 HP

Outboard
Overview

Our 139-cc 4-hp portable outboard mirrors our OHV F6, with a couple less horses. It features the same ergonomic, easy-grip starter handle with a built-in decompression device for effortless starts. The F4 also features a built-in fuel tank with the option of switchable access to an additional external tank for amazing extended range. There’s no stopping this little brute.

 

  • Tiller-handle control with forward-neutral-reverse shifting and an ergonomic twist-grip throttle
  • Only 59 pounds (15” shaft model)
  • Available in 15” and 20” shaft lengths
  • Solid 6-amp alternator
Engine Type1 cyl
Displacement139cc
Bore x Stroke62 x 46mm (2.44 x 1.81in)
Prop Shaft Horsepower4hp at 4500 rpm
Full Throttle RPM Range4000 ~ 5000
Alternator Output at W.O.T.6 Amp
Compression Ratio8.9:1
Fuel Induction SystemCarb
Weight †27 kg (59 lbs) - 28 kg (61 lbs)
Recommended FuelOctane 87
Recommended Engine OilYamalube® 4M (See owner's manual)
Recommended Fuel FiltrationN/A
C.A.R.B. Rating3-Star
ExhaustAbove Propeller
Intake2
IgnitionCDI
Spark PlugCR6HSB
Alternator Output6 Amp
Starting SystemManual
LubricationWet Sump
Engine Oil Capacity0.6L
Recommended CoolingThermostatic Control
Ethanol Blend Limit10% Maximum
Gear Ratio2.08:1
Gear ShiftForward, Neutral, Reverse
Shaft Length15" - 20"
Degree of Tilt69°
Degree of Trim-4° through +16°
Dry Weight15" shaft / 27 kg (59 lbs), 20" shaft / 28 kg (61 lbs)
Mounting CentersN/A
Steering Angle (maximum)90° from center, either direction
WarrantyLimited 3-Year Pleasure, 3-Year Government, 1-Year Commercial

Yamaha Outboards Catalog

Check the latest line of outboard power and rigging components.

Request a Callback or Email

1 Step 1
Full NameFull Name
Phone NumberPhone Number
I'm Interested In...
0 /
Preferred Method of Reply
Previous
Next
FormCraft - WordPress form builder