How fast is a Suzuki 20hp outboard?

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How fast does a Suzuki 20 hp outboard go?
How much does a 20 hp Suzuki weight?
How much does a 20 hp Suzuki outboard weight?
How do you break in a Suzuki 20 hp outboard?

Description
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Description

Suzuki’s all-new fuel-efficient 20HP outboard motor model: DF20AS3 four-stroke outboard with the manual rope start and the 15-inch shaft is an affordable choice of power for medium to larger-sized Jon boats, skiffs, and inflatable boats. As the lightest outboard in its class and one of the quietest 4-strokes ever built, the Suzuki 20HP outboard motor is a great example of Suzuki’s excellence in engineering. Check out the long list of standard features below which make the 20HP Suzuki outboard engine an exceptional value. This outboard now comes with the Suzuki 5 year warranty!

Additional information

Horsepower	20 HP
Shaft Length	15″ (Short)
Starter Type	Manual
Tilt & Trim	Manual

FEATURES

Electronic Fuel Injection (EFI)
Sleek, Compact, Lightweight Design
Saltwater Rated
Fresh Water Flushing Port
Multi-Layer Corrosion Protection
Decompression Release for Easy Starts
Forward-Mounted Gear Shift Lever
Twist-Grip Throttle with Tension Control
Quiet Through-the-Prop Exhaust
Start-in-Gear Lockout Protection
Proven Automotive Style Oil Pump
Shallow Water Drive
5 Trim Positions w/Tilt Lock Pin
Low Oil Pressure Warning System
Over Heat Warning System
Over-Rev Limiter Protection
Steering Friction Tension Control
Integrated Carrying Handle
Emergency Lanyard Stop Switch
3.1 US Gallon Fuel Tank / Fuel Line
3-Blade Aluminum Propeller
3-Star Ultra-Low Emission Rating
Suzuki’s Lean Burn Control System
Suzuki 5-Year Warranty

SPECS

MODEL	DF20AS3
SKU	DF20AS3-21
WEIGHT	97.0 lb
MANUFACTURER	Suzuki
COUNTRY OF MANUFACTURE	Thailand
HORSEPOWER	20hp
SHAFT LENGTH	15″ (Short)
STEERING	Tiller
STARTING	Manual
TRIM & TILT	Manual
FUEL DELIVERY	EFI
FUEL TANK	External
CYLINDER(S)	2
DISPLACEMENT	327 cc (20.0 cubic inches)
BORE AND STROKE	60.4 x 57 mm (2.38 x 2.24 inches)
FULL THROTTLE RPM RANGE	5300-6300 RPM
IGNITION SYSTEM	Digital CDI
INDUCTION SCAVENGING	SOHC
VALVES PER CYLINDER	2
FUEL TYPE	Unleaded Gasoline (87 octane)
FUEL TANK / FUEL LINE	INCLUDED: 3.1 Gallon Fuel Tank and Fuel Line
OIL TYPE	SAE 10W-30 or SAE 10W-40
OIL CAPACITY	33.8 fl oz. (1000 mL)
LUBRICATION	Wet Sump; Trochoid Type Cam-Driven Oil Pump
ALTERNATOR	12V 80W 6A (OPTIONAL)
COOLING SYSTEM	Water-Cooled
SALTWATER RATED	Yes
GEAR RATIO	2.08:1
GEAR SHIFT	Forward-Neutral-Reverse (front-mounted lever)
PROPELLER	3-Blade Aluminum 9.25″ Dia x 10″ Pitch

IN THE BOX

3.1 gal. Fuel Tank
Fuel Line
Owner’s Manual
Aluminum Propeller
Tool Kit
Suzuki 5-Yr Warranty

14 March 2017, 21:23

Member

Country: Canada

Town: Calgary

Boat name: Mountaineer 360

Make: Salter

Length: 3m +

Engine: Mercury 20HP

Join Date: Mar 2017

Posts: 32

Top Speed and Trolling with a 20hp 4-stroke on a 12' SIB?

I have a Nissan 9.8 2-stroke right now, great motor, but it stinks... literally when trolling..

I'm looking to upgrade my 2-stroke to a 4-stroke 20hp Merc.

Does anyone have this motor or a 20hp 4-stroke on a 12' SIB? I am wondering if it'll troll slow enough with 2 ppl in the boat w/gear...

The 9.8 was ok, it was hard to dial in a decent speed and it wasn't a pleasant experience compared to the 5hp 4-stroke I had previously.

I am wanting more top end speed to get me where I want to fish and to be able to troll... I can get a good deal on a 20hp Mercury 4-stroke here so I am trying to decide if its worth the $$...

I topped out at 15mph with my Nissan 9.8 with me and my fishing buddy last year, 17mph solo. What kind of top end speed can I get with a 20hp 4-stroke?

__________________

14 March 2017, 21:52

Member

Country: UK - Scotland

Town: Langbank, Renfrewshire

Boat name: -

Make: Avon Adventure 450

Length: 4m +

Engine: 60hp Mariner

Join Date: Jan 2017

Posts: 132

I have a 3.8 SIB with a 20hp 4 stroke Mariner. I've only had it about a month and it goes pretty quick. I'm told about 22mph.

Your problem might be trolling. Even at tick over I'd say it goes 2mph, so you might be on and off the throttle too much.

Get the 20hp and an electric motor for the trolling?

__________________

14 March 2017, 21:53

Member

Country: UK - England

Town: East Anglia

Boat name: Nimrod II

Make: Aerotec 380

Length: 3m +

Engine: Tohatsu 9.8 2-stroke

Join Date: Nov 2007

Posts: 7,575

Very similar thoughts to Nick above re speeds...

My 20hp Suzuki 4-stroke (2016 fuel injection model) idles at 850rpm and with its 10" prop idle trolling speed is 2.14mph. It will go all day like this in near silence and smoke free obviously. The Mariner should be broadly the same but has to be said the Suzuki with ECU controlled EFI has an advantage in that the idle/trolling is controlled by the ECU at that figure with no variation for hot/cold engine or load (within reason).

I'd guess top speed for a 20hp on your SIB would be around 23mph.

__________________

14 March 2017, 22:02

Member

Country: UK - England

Town: Up North and right a bit

Make: XS500/Merc340/Bic245

Length: 5m +

Engine: Mar 60/20/3.5/Hon2.3

Join Date: Sep 2013

Posts: 816

Top Speed and Trolling with a 20hp 4-stroke on a 12' SIB?

I had both a 9.8 Tohatsu 2-stroke and a Suzuki DF20A 4-stroke on 3.5/3.8m sibs. Not into fishing so no requirement for long term trolling.
However the Suzuki would happily tickover all day long in gear if required. The Tohatsu being 2-stroke would soon foul up the plugs if left on tickover all day long.
Speed wise....20mph*for the 9.8 and 25mph* for the 20 one up.
*on a good day

__________________

14 March 2017, 23:28

Member

Join Date: Jul 2011

Posts: 873

Howdy.

I've got a Honwave 3.5ae (aluminium floor) as well as a Honwave t3.8 (air floor).

I own a Tohatsu 20hp 4 stroke (same as merc / mariner) and a Suzuki 2.5hp 4 stroke as well as a Suzuki 2.2hp 2 stroke.

The little Suzuki 2.5hp 4 stroke is the mutts nuts for trolling. The Suzuki 2.2hp stinks when trolling ' give me a sore head after a while so I get where your coming from.

The Honwave 3.5ae with 20hp Tohatsu 4 stroke idles along in slack water at around 2 - 3 mph. Speed varies greatly upon tide / wind etc. Sometimes idle won't push against the tide where I fish.

2 up the Tohatsu 20hp pushes the Honwave 3.5ae along at around 19 mph. 1 up around 23mph.

The T3.8 Honwave airfloor is a little faster and you can add 2 - 4 mph on that quoted above for the 3.5ae aluminium floored version.

In summary I'm happy with the 20hp. Can be used for trolling and has a decent turn of speed to cover some distance as well.

__________________

15 March 2017, 13:19

Member

Country: Canada

Town: Calgary

Boat name: Mountaineer 360

Make: Salter

Length: 3m +

Engine: Mercury 20HP

Join Date: Mar 2017

Posts: 32

Thanks for the replies!

I think what I'm going to do is buy the mercury 20hp, they have an extended 5 year warranty offer right now til the end of the month and Basspro just has all other manufacturers beat in terms of pricing.. by about $1000 minimum.

I think I can get a different prop also to slow things down, but it sound like the trolling speed will be right around where I want it so that should be good.

__________________

15 March 2017, 14:14

Member

Country: UK - England

Town: East Anglia

Boat name: Nimrod II

Make: Aerotec 380

Length: 3m +

Engine: Tohatsu 9.8 2-stroke

Join Date: Nov 2007

Posts: 7,575

If you are OK with lifting the Mercury it sound the best deal for you. Yes you could prop down in pitch at the expense of possible over-revving when flat out lightly loaded.

__________________

15 March 2017, 15:19

Member

Country: Canada

Town: Calgary

Boat name: Mountaineer 360

Make: Salter

Length: 3m +

Engine: Mercury 20HP

Join Date: Mar 2017

Posts: 32

its heavy, but its between the Suzuki and Yamaha in terms of weight.. +/- 10lbs...

__________________

15 March 2017, 20:46

Member

Country: Canada

Town: Calgary

Boat name: Mountaineer 360

Make: Salter

Length: 3m +

Engine: Mercury 20HP

Join Date: Mar 2017

Posts: 32

Well, I pulled the trigger.. unloaded my Nissan 2 stroke in the basspro parking lot to a nice gentleman and walked in and bought the Mercury 20hp.

Pick it up tomorrow! thanks everyone for their input!

__________________

15 March 2017, 22:19

#10

Member

Country: UK - England

Town: Bristol

Boat name: Salty Cheeks

Make: Honwave

Length: 3m +

Engine: 20hp 2stroke Mariner

Join Date: Mar 2014

Posts: 485

Quote:

Originally Posted by kaman

Howdy.

I've got a Honwave 3.5ae (aluminium floor) as well as a Honwave t3.8 (air floor).

I own a Tohatsu 20hp 4 stroke (same as merc / mariner) and a Suzuki 2.5hp 4 stroke as well as a Suzuki 2.2hp 2 stroke.

The little Suzuki 2.5hp 4 stroke is the mutts nuts for trolling. The Suzuki 2.2hp stinks when trolling ' give me a sore head after a while so I get where your coming from.

The Honwave 3.5ae with 20hp Tohatsu 4 stroke idles along in slack water at around 2 - 3 mph. Speed varies greatly upon tide / wind etc. Sometimes idle won't push against the tide where I fish.

2 up the Tohatsu 20hp pushes the Honwave 3.5ae along at around 19 mph. 1 up around 23mph.

The T3.8 Honwave airfloor is a little faster and you can add 2 - 4 mph on that quoted above for the 3.5ae aluminium floored version.

In summary I'm happy with the 20hp. Can be used for trolling and has a decent turn of speed to cover some distance as well.

Hi all

I run a 13p Ballistic prop and get consistent 24 mph at 5680 Rpm 2 up , with 30 stone plus .I would like to try a 15 p but funds.Not sure how the 17 inch leg has different gearing , as it is an ex M L i engine

__________________

16 March 2017, 06:55

#11

Member

Country: Other

Town: Istanbul

Make: MKIII Zodiac GR 1986

Length: 4m +

Engine: Johnson 30hp 2/s

Join Date: Nov 2014

Posts: 41

Quote:

Originally Posted by Slayer33

Well, I pulled the trigger.. unloaded my Nissan 2 stroke in the basspro parking lot to a nice gentleman and walked in and bought the Mercury 20hp.

Pick it up tomorrow! thanks everyone for their input!

This is going to be a nice configuration, it has a great voice like wishpering when trolling.

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How fast does a Suzuki 20 hp outboard go?

Speed wise.... 20mph*for the 9.8 and 25mph* for the 20 one up.

How much does a 20 hp Suzuki weight?

Choose your steering type.

How much does a 20 hp Suzuki outboard weight?

Additional information.

How do you break in a Suzuki 20 hp outboard?

Allow sufficient idling time for the engine to warm up after cold engine starting (about 5 minutes). After warming up, run the engine at idling speed or the lowest in gear speed for about 15 minutes. During the remaining 1 hour and 45 minutes operate the engine in gear at leass than half throttle (3000 r/min)