DOHC
16-VALVE IN-LINE 4 POWERHEAD features offset drive
for compact profile. (DF140/115/90)
SOHC 8-VALVE IN-LINE 4 POWERHEAD
based on Suzuki’s 1.3L automotive engine, a proven performer.
(DF70/60)
DOHC 12-VALVE IN-LINE 3 POWERHEAD
uses multiple valves and twin camshafts to maximize engine
performance and efficiency. (DF50/40)
LONG-TRACK INTAKE MANIFOLD
made of special corrosion-resistant material designed to boost
the engines mid range torque. (DF140/115/90/70/60/50/40)
SOLID STATE IGNITION SYSTEM
provides twice as much power to the spark plug, allowing for
cleaner, more complete combustion — and maximum power
with every stroke. (DF140/115/90/70/60/50/40)
SEQUENTIAL MULTI-POINT DIGITAL Electronic
Fuel Injection delivers improved fuel economy and
extended range on a single tank of fuel. Suzuki’s advanced
Electronic Fuel Injection system continuously monitors engine
conditions and delivers the precise fuel/air mix to each cylinder.
The power curve was tuned to deliver smooth acceleration with
quick throttle response. (DF140/115/90/70/60/50/40)
ENCLOSED TIMING CHAIN
is bathed in oil and features an automatic hydraulic chain
tensioner to prolong service life and eliminate periodic maintenance.
(DF140/115/90/50/40/30/25)
HIGH OUTPUT ALTERNATORS,
40 amp on DF140/DF115 and DF90, 25 amp on DF70 and DF60 and
18 amp on DF50 and DF40, keep your electronics running, even
during hours of trolling.
COMPUTER DIAGNOSTIC SYSTEM
allows your dealer to troubleshoot quickly and reduce service
time. (DF140/115/90/70/60/50/40)
ENVIRONMENTAL FRIENDLY PERFORMANCE
through Suzuki’s advanced technology delivers 4-stroke outboards
that pass many of the world’s toughest emission standards.
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Offset Drive Shaft
The offset driveshaft found in the DF140, 115, and 90
incorporates intermediate reduction gearing to position
the powerhead forward for better balance on the transom
and minimize outboard size. A two-stage gear reduction
system provides an increase in torque without adding bulk
or weight. The gain in torque allows the use of a larger
prop for greater acceleration, top speed and load handling
capabilities. Further size reduction is found in the two-stage
mixed camshaft drive system, which incorporates both gears
and a chain to allow for the use of smaller cam sprockets
which in turn allows for a reduction in valve angles for
a more compact cylinder head.
4-2-1 Exhaust
Cast into the cylinder head and cylinder block on the
DF140, 115, and 90, this race proven technology reduces
drag in the exhaust system allowing smooth and orderly
exhaust flow out of the cylinders.
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