Our 139-cc 4-hp portable outboard mirrors our 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
Solid 6-amp alternator
Yamaha Outboards 4HP | F4SMHA
Model:
F4SMHA
Shaft Length:
15"
Weight:
59
Fuel Induction System:
Carb
Controls:
Tiller
Starter:
Manual
Tilt:
Manual
Cylinders:
1
Displacement:
139cc
Prop Shaft Horsepower:
4 hp at 5500 rpm
Full Throttle RPM Range:
4000- 5000
Alternator Output at W.O.T.:
6
Propeller:
Aluminum
Recommended Fuel:
Octane 87
Recommended Engine Oil:
Yamalube® 4M
Recommended Fuel Filtration:
n/a
Internal Fuel Tank:
Yes
