Yamaha’s 20HP sets the benchmark in its class. Ultra-lightweight, fuel-efficient and now equipped with EFI, this portable outboard delivers serious power and smooth performance — with the reliability only Yamaha can offer. Your go-anywhere marine engine, reimagined.
20HP
Compact Power, Yamaha Precision
The Yamaha 20HP outboard is a lightweight, compact engine that doesn’t compromise on strength or efficiency. With a weight starting at just 56kg, it’s one of the lightest in its class, offering remarkable power-to-weight ratio. The advanced battery-less EFI system ensures dependable starts, smoother operation, and optimized fuel economy. Its quiet operation, ergonomic tiller, and effortless tilt/trim options enhance comfort and control in every condition.
From rivers to offshore runs, the 20HP offers the versatility serious boaters demand. Choose between manual or electric start, tiller or remote control, and short or long shaft configurations. The high-output alternator delivers reliable power for electronics and accessories, while Yamaha’s proven YDC-30 aluminium alloy and advanced paint system protect against corrosion. With variable trolling RPM and improved steering friction, this engine gives you precise handling and peace of mind — wherever your journey takes you.
DETAILS
ABOUT 20HP
ENGINE
| ➢ CATEGORY | Versatile Marine Engines (25 – 8hp) |
|---|---|
| ➢ ENGINE TYPE | 4-stroke |
| ➢ Displacement | 432 cc |
| ➢ No. of cylinders / Configuration | 2/In-line, SOHC |
| ➢ Bore x stroke | 65.0 mm x 65.1 mm |
| ➢ Prop shaft output at mid range | 14.7 / 5,500 rpm |
| ➢ Full Throttle Operating Range | 5,000 – 6,000 rpm |
| ➢ Lubrication system | Wet sump |
| ➢ Fuel Induction System | EFI |
| ➢ Ignition / advance system | CDI |
| ➢ Starter system | Electric/ Manual (WH), Manual (MH), Electric (E, EP) |
| ➢ Gear ratio | 2.08 (27:13) |
DIMENSIONS
| ➢ Transom height | S:429mm L:556mm |
|---|---|
| ➢ Fuel tank capacity | separate, 25L |
| ➢ Oil pan capacity | 1.1 L |
| ➢ Weight without propeller | 56kg – 63kg |
ADDITIONAL FEATURES
| ➢ Control | Remote control (E, ET), Tiller handle (MH + WH) |
|---|---|
| ➢ Trim & Tilt method | Power Trim & Tilt (ET), Manual Tilt (MH, E + WH) |
| ➢ Light coil / Alternator Output | 12V -16A with rectifier/regulator |
| ➢ Engine immobilizer | YCOP optional |
| ➢ Propeller | Optional (E, EP), Included (MH, WH) |
| ➢ Variable Trolling Speed | With DN Gauges or m-f tiller handle |
| ➢ Steering | Tiller handle, Remote Control |
| ➢ Remark | The kW data in this sheet is based on the ICOMIA 28 standard, measured at the prop shaft |
PHOTOS
GALLERY
SERENITY
The Smartest 20HP Choice
The Yamaha 20HP is designed for boaters who value effortless operation and long-lasting dependability. With a new ergonomic tiller handle, improved steering friction, and soft-shifting controls, every trip feels smoother and more controlled. The Freshwater Flushing system, Start-in-Gear protection, and built-in warning systems offer added safety and peace of mind. Combined with Yamaha’s industry-leading anti-corrosion materials and paint process, this engine is built to go the distance — with minimal noise, vibration, or stress.
DESIGN
ENGINE
Don’t let the size fool you — the Yamaha 20HP is packed with advanced tech. Its 432cc twin-cylinder SOHC engine delivers strong torque and rapid acceleration, while the battery-less Electronic Fuel Injection system ensures smooth starts and outstanding fuel efficiency. Whether cruising, trolling, or powering gear, the 16A alternator supplies constant, reliable energy. Optional Power Tilt, remote control, and Digital Network compatibility make the 20HP a small engine with seriously smart features — for total control, anywhere.
WARRANTY
5 YEAR PROMISE
Enjoy Yamaha’s industry-leading limited warranty, offering up to 5 years of peace of mind. The 20HP is built to exacting standards with proven dependability. Whether you’re navigating calm bays or deep offshore waters, Yamaha’s legacy of excellence keeps you covered.
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