F4

Four Strokes 1 cylinder / 139cc / 4 HP

Lightweight, compact and economical, Yamaha Outboard F4 1-cylinder has been designed to be ultra-easy to use and transport. It features the same ergonomic, easy-grip starter handle with a built-in decompression device for effortless starts than the little more capable F6. 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. Designed for tiller-handle control with forward-neutral-reverse shifting and an ergonomic twist-grip throttle. Available in 15” and 20” shaft lengths. Runs on 87 Octane. An engine perfect for all sorts of light duty.

F4

Four Strokes 1 cylinder / 139cc

4 HP

Lightweight, compact and economical, Yamaha Outboard F4 1-cylinder has been designed to be ultra-easy to use and transport. It features the same ergonomic, easy-grip starter handle with a built-in decompression device for effortless starts than the little more capable F6. 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. Designed for tiller-handle control with forward-neutral-reverse shifting and an ergonomic twist-grip throttle. Available in 15” and 20” shaft lengths. Runs on 87 Octane. An engine perfect for all sorts of light duty.

Available Colors
Engine Type: 1 cylinder
Displacement: 139cc
Bore x Stroke: 2.44 x 1.81 in
Prop Shaft Horsepower: 4hp at 4500 rpm
Full Throttle RPM Range: 4000 ~ 5000
Alternator Output at W.O.T.: 6 Amp
Compression Ratio: 8.9:1
Fuel Induction System: Carb
Weight*: 27 kg (59 lbs) - 28 kg (61 lbs)
Recommended Fuel: Octane 87
Recommended Engine Oil: Yamalube® 4M (See owner's manual)
Recommended Fuel Filtration: N/A
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