Yamaha F20MH Four-Stroke Portable Outboard
F20SMHB
$6,526.00
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Yamaha F20MH Four-Stroke Portable Outboard
Motor-only pricing. Contact us for a fully fitted package.
$6,526.00
Lightweight Power, Fuel Efficiency and Proven Yamaha Reliability
The Yamaha F20MH 20HP Four-Stroke Outboard delivers impressive performance in a compact, lightweight package. Featuring electronic fuel injection (EFI), manual starting and tiller steering, the F20MH is an excellent choice for small aluminium fishing boats, inflatables, tenders and recreational runabouts.
Powered by Yamaha's 432cc twin-cylinder four-stroke engine, the F20MH offers responsive acceleration, smooth operation and excellent fuel economy. Built on the same proven engine platform as Yamaha's F25, it delivers the performance of a larger outboard while remaining practical for smaller boats.
One of the F20MH's standout features is its battery-less electronic fuel injection system. Unlike conventional carburetted outboards, EFI automatically adjusts fuel delivery to suit operating conditions, providing reliable starting, smooth throttle response and efficient fuel consumption. Best of all, the manual-start F20MH doesn't require a battery to operate its fuel injection system.
With its straightforward manual tilt system, comfortable tiller steering and shallow-water drive capability, the F20MH is easy to operate whether you're heading out fishing, exploring sheltered bays or launching from the beach.
For boat owners looking for a dependable 20HP outboard without the added complexity of electric start or power tilt, the Yamaha F20MH offers an excellent balance of performance, simplicity and reliability.
Key Features
- 20HP Twin-Cylinder Four-Stroke Engine – Proven 432cc SOHC engine delivering smooth, responsive performance.
- Battery-Less Electronic Fuel Injection (EFI) – Reliable fuel delivery without requiring a starting battery.
- Manual Pull Starting – Simple, dependable starting system.
- Tiller Steering – Direct, responsive control with an ergonomically designed tiller handle.
- Manual Trim & Tilt – Straightforward operation without electric tilt components.
- Shallow-Water Drive – Three-position system for operating in shallow water.
- Excellent Fuel Economy – Efficient EFI technology helps minimise fuel consumption.
- Lightweight Construction – Starting at approximately 57kg, making it suitable for smaller boats.
- 16-Amp Alternator System – High-output electrical generation, with battery-charging equipment dependent on configuration.
- External Fuel Tank – 24-litre fuel tank specification for practical cruising range.
- Freshwater Flushing Connection – Makes flushing the cooling system after saltwater use easier.
- Yamaha Corrosion Protection – Designed for dependable operation in demanding marine environments.
Technical Specifications
| Specification | Yamaha F20MH |
|---|---|
| Engine Type | Four-Stroke SOHC, Inline 2-Cylinder |
| Horsepower | 20HP |
| Displacement | 432cc |
| Bore × Stroke | 65 × 65.1mm |
| Fuel System | Electronic Fuel Injection (EFI) |
| Starting System | Manual Pull Start |
| Steering | Tiller Handle |
| Trim & Tilt | Manual |
| Shallow-Water Drive | 3 Positions |
| Gear Selection | Forward / Neutral / Reverse |
| Recommended Maximum RPM | 5,000–6,000 RPM |
| Ignition | CDI |
| Lubrication | Wet Sump |
| Gear Ratio | 2.08:1 |
| Alternator | 12V – 16A (charging kit optional) |
| Fuel Tank | External – 24L |
| Short Shaft Transom Height | 424mm |
| Long Shaft Transom Height | 551mm |
| Dry Weight – Short Shaft | 57kg |
| Dry Weight – Long Shaft | 59kg |
Specifications are based on Yamaha's current-generation EFI F20MH. Shaft length and supplied equipment depend on the selected model.
Why Choose the Yamaha F20MH?
Simple, Reliable Operation
The F20MH combines modern EFI technology with traditional manual starting and tilt. It's a practical choice for boat owners who prefer straightforward operation without relying on a starting battery.
Fuel-Efficient EFI Performance
Yamaha's electronic fuel injection provides accurate fuel delivery, responsive acceleration and economical running. With no carburettor to adjust, EFI also offers advantages for regular recreational use.
Ideal for Fishing
The F20MH is well suited to smaller fishing boats where dependable power, manageable weight and good fuel economy are important. Its shallow-water drive system is particularly useful around tidal estuaries and beach launching areas.
Compact and Versatile
Available in short- and long-shaft configurations, the F20MH can be matched to a range of smaller aluminium boats, inflatables and tenders.
Available at Bay of Islands Yamaha
Whether you're upgrading an older outboard or fitting out a new boat, the Yamaha F20MH offers modern four-stroke performance with the simplicity of manual starting and tiller steering.
Contact Bay of Islands Yamaha for pricing, availability and advice on selecting the correct shaft length for your boat.