Mercury Marine 90-850416009 Outboard Motor User Manual


 
29
FULL-LINE FEATURES
From 6 hp down to 2.5 hp, our features provide better
value than other outboards.
Convenient thumbscrews can be tightened
and loosened without extra tools.
Automatic decompression reduces cylinder
pressure, making pull-starting a piece of cake.
Thermostatically controlled cooling system keeps
the powerhead cool for optimum performance.
EXCLUSIVE FEATURES
FOR 6 – 4 HP FOURSTROKES
The 4 hp dual fuel system can run off an
integral or remote fuel tank.
Full forward, neutral and reverse shifting
delivers unmatched maneuverability.
Through-prop exhaust provides nearly
silent operation.
EXCLUSIVE FEATURES
FOR 3.5 – 2.5 HP FOURSTROKES
Neutral-Forward shifting makes these
outboards easy to start and operate.
360-degree steering allows full thrust and
unmatched maneuverability in all directions,
especially in reverse.
Our easy-to-view oil sight gauge allows you
to check the oil without removing the cowling.
They’ll never hold you back.
Mercury 2.5 – 6 hp FourStrokes are designed from the
start to be compact, lightweight and easier to carry.
Your steering hand will thank you.
On average, Mercury 3.5 hp FourStroke has 32% less
tiller handle vibration
than Honda 2.0 hp four-stroke
and 9% less vibration than Yamaha 2.5 hp four-stroke.
What’s that? At wide open throttle, Mercury
2.5 hp FourStroke is
82% quieter than Suzuki
2.5 hp four-stroke. Sound good? We thought so.
Underwater exhaust buries the sound providing
near-silent running.
Patented one-piece cylinder block minimizes
noise and vibration.
Water cooling, standard on these outboards,
makes them significantly quieter than other
air
-
cooled outboards.
6 hp
5 hp
4 hp
3.5 hp
2.5 hp
NO VIBRATION IS
GOOD VIBRATION
YOU GOT TA
HEAR THIS
CARRY
ON
28
LIGHTWEIGHT CHAMPIONS
Sources:
Boating
®
Magazine “Mighty Mites” – February 2007. T
est conducted on a 8'6" Mercury 260 RIB using a Mercury 2.5 hp FourStrok
e and a
Suzuki DF-2.55K6 four
-stroke.
Mercury Marine Engineering Dept. – February 2005. T
est conducted using a Mercury 3.5 hp FourStroke, a Honda 2.0 hp four-stroke and a
Y
amaha 2.5 hp four
-stroke engine.
(1) 3.5 only. *Per Engineering Standards Run-Up in Ryds
Go to MercuryMarine.com
For head-to-head engine tests,
boater interviews and other videos,
SEE WHAT MAKES MERCURY FOURSTROKES A POPULAR SOURCE OF RECREATIONAL POWER
SUZUKI
HONDA
Patented one-piece cylinder block on 2.5 and 3.5 hp
engine is incredibly compact and lightweight.
Integrated fuel tank is more convenient
than a bulky remote tank.
Ergonomic handle keeps the weight of the
engine evenly balanced for easier carrying.
Engine Type: Single-Cylinder 7.5 cu in (123 cc)
Weight: 55 lb (25 kg)
Steering: Tiller
Warranty: Three-year limited, nondeclining factory-backed
Induction: 2-valve push rod
Shaft Length: 15" (381 mm), 20" (508 mm)
CARBStar Rating:
3
Engine Type: Single-Cylinder 5.2 cu in (85 cc)
Weight: 40 lb (18 kg) (15" shaft); 42 lb (19 kg) (20" shaft)
Steering: Tiller with 360º steering
Warranty: Three-year limited, nondeclining factory-backed
Induction: 2-valve push rod
Shaft Length: 15" (381 mm), 20" (508 mm)
(1 )
CARBStar Rating:
3
6 hp 5 hp 4 hp
3.5 hp 2.5 hp
32% Less
on average
THE COMPLETE
PORTABLE PACKAGE
28
It’s easy to get carried away
with the portable performance
of Mercury FourStrokes