Yamaha Marine Outboard | 20HP | Four Stroke | Long Shaft | Tiller Handle

YAMAHA Marine Outboard 20HP -  the winning combination of easy handling and great control!

You can buy a four-stroke outboard motor YAMAHA F20GMHL in our store, our specialists will advise and select a compatible motor package for your boat.


This versatile, twin-cylinder 4-stroke combines power and responsiveness - and delivers a super-smooth ride. Outstanding fuel economy also means that you're being kinder to the environment, with exhaust emissions cut to a minimum.

Enjoy too, the many extras that only a Yamaha outboard delivers. Benefits like computer-controlled ignition, a special light-load starting system, a water-cooled fuel pump, and a large-volume silencer – all normally only found on larger engines. For commercial, professional or leisure use, it adds up to a winning formula.



Read More

Pickup Availability:

(Out of Stock)

Out of stock

Notify when available

Enter your email address below and we'll notify you when this product is back in stock!


*Features are displayed in the ‘What’s in the Box?’ Section*



Max. prop shaft output 14.7 kW / 20 hp
Full throttle operating range 5000~6000 r/min
Idling speed 900 ± 50 r/min
Fuel consumption 7.5 l/h @6000 r/min



Engine type 4-Stroke, SOHC, In-Line 2
Displacement 432 cm³
Bore × Stroke 65.0 × 65.1 mm
Compression ratio 9.1 :1
Starting enrichment Fuel Injection
Fuel induction system Electronic Fuel Injection (EFI)
Fuel tank Portable, 25 ℓ
Lubrication system Wet sump
Engine oil capacity 1.1/1.0 ℓ (with / without oil filter replacement)
Ignition system TCI Micro-computer
Ignition timing ATDC 3.0 – BTDC 22.0 deg.
Spark Plug DPR6EB-9
Engine Start Manual
Alternator 16 A
Cooling system Raw-water, thermostatically controlled
Exhaust system Through propeller boss



Steering Tiller Handle
Steering Angle (maximum) 45° from center, either direction
Mounting Centers  
Trim Control System Manual
Trim / Shallow water drive 4 positions / 2 positions
Degree of Trim -3° through +16°
Degree of Tilt 62° – 63°
Gear shift Forward-Neutral-Reverse
Gear ratio 2.08 (27/13)
Gear oil capaciti 0.370 ℓ
Propeller rotation Clockwise
Propeller hub F
Engine transom height (Shaft length) L: 551 mm (21.7 inch)
Boat transom height L: 508 mm
Dry weight 59,0 kg


Additional Info

All our prod­ucts carry a two-year guar­an­tee on any fac­tory de­fects.


We en­cour­age all po­ten­tial  buy­ers to come and view the prod­ucts and dis­cuss the many op­tions avail­able. 


We are open daily and on Sat­ur­days. Please send us an email on sales@ritz­ma­rine.com with any questions you may have.

What’s in The Box?


You’ll find the 20hp very easy to control and comfortable to drive, thanks to its many features – from the front-mounted shift lever and single-lever steering friction adjuster to the light-load recoil starter. A built-in handle on the steering bracket and resting pads on the rear, make for convenient handling and portability too.


Start your outboard engine as easily as starting a car – even from cold. Exclusive to Yamaha, the Prime StartTM system ensure that the engine fires first time, every time you engage either the Electric or Manual Start.


Never get left short. A High-output alternator ensures that power is always available to start the engine – even after prolonged periods of idling or when you’ve been running at low revs and using numerous accessories.


Cruise towards the shore with confidence thanks to Yamaha’s Shallow Water Drive system. Offering ample protection for your propeller, it allows you to get as close as you need to be, no matter whether you’re cruising a murky lake or the crystal clear shallows of the sea.

F-N (Forward-Neutral-Reverse) GEARS FOR EASY CONTROL

Manual gear selection allows the engine to be warmed up in Neutral. The propeller will not turn until Forward is selected for safer idling. Ensures smoother acceleration and better control especially when turning. On Electric Start versions, the power supply to the starter motor is isolated until Neutral is selected.

HIGH-OUTPUT ALTERNATOR - keeps the power coming

The 20hp will be put to a wide variety of tasks, from fishing at night to coastal cruising, so its high-output alternator is a comforting feature, ensuring that power should always be available to start the engine – even after prolonged periods of idling or if you’ve been running at low revs and using numerous accessories.


An easy-access connector on the lower cowling allows you to easily flush salt and dirt from the waterways without having to run the engine – just connect a hose and you’re ready to go. This is a very efficient way to reduce corrosion and extend the life of your outboard.