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They weigh as little as 37 pounds, but all offer impressive features like electronic ignition, thermostatic cooling and 180-degree steering.
Our 139-cc 6-hp portable is an impressive little outboard. It boasts surprising features for such a small motor, like labyrinth exhaust and a long span mounting system for smooth, quiet power. It also offers the convenience an external fuel tank (in addition to its built-in tank) for extended range and added convenience.
| Engine Type | 1 cyl |
|---|---|
| Displacement | 139cc |
| Bore x Stroke | 62 x 46mm (2.44 x 1.81in) |
| Prop Shaft Horsepower | 6hp at 5000 rpm |
| Full Throttle RPM Range | 4500 ~ 5500 |
| 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 |
| C.A.R.B. Rating | 3-Star |
| Exhaust | Above Propeller |
| Intake | 2 |
| Ignition | CDI |
| Spark Plug | CR6HSB |
| Starting System | Manual |
| Lubrication | Wet Sump |
| Engine Oil Capacity | 0.6L |
| Recommended Cooling | Thermostatic Control |
| Ethanol Blend Limit | 10% Maximum |
| Gear Ratio | 2.08:1 |
| Gear Shift | Forward, Neutral, Reverse |
| Shaft Length | 15″ – 20″ |
| Degree of Tilt | 69° |
| Degree of Trim | -4° through +16° |
| Mounting Centers | N/A |
| Steering | |
| Steering Angle (maximum) | 90° from center, either direction |
| Warranty | Limited 3-Year Pleasure, 3-Year Government, 1-Year Commercial |
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.
| Engine Type | 1 cyl |
|---|---|
| Displacement | 139cc |
| Bore x Stroke | 62 x 46mm (2.44 x 1.81in) |
| 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 |
| C.A.R.B. Rating | 3-Star |
| Exhaust | Above Propeller |
| Intake | 2 |
| Ignition | CDI |
| Spark Plug | CR6HSB |
| Starting System | Manual |
| Lubrication | Wet Sump |
| Engine Oil Capacity | 0.6L |
| Recommended Cooling | Thermostatic Control |
| Ethanol Blend Limit | 10% Maximum |
| Gear Ratio | 2.08:1 |
| Gear Shift | Forward, Neutral, Reverse |
| Shaft Length | 15″ – 20″ |
| Degree of Tilt | 69° |
| Degree of Trim | -4° through +16° |
| Mounting Centers | N/A |
| Steering | |
| Steering Angle (maximum) | 90° from center, either direction |
| Warranty | Limited 3-Year Pleasure, 3-Year Government, 1-Year Commercial |
Our 72-cc 2.5-hp portable outboard is the smallest motor on our roster, but it still packs a punch. Completely redesigned, it’s even more portable, easier to store and clean burning.
| 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® 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 |
| 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° |
| Mounting Centers | N/A |
| Steering | |
| Steering Angle (maximum) | 360° from center, either direction |
| Warranty | Limited 3-Year Pleasure, 3-Year Government, 1-Year Commercial |
Legendary Marine is your premier destination for Yamaha Outboard Engines. Discover the power, reliability, and innovation of Yamaha’s world-renowned marine engines right here. Whether you’re a seasoned boater or a newcomer to the water, our expert team is dedicated to helping you find the perfect Yamaha Outboard Engine to suit your needs.
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