Suzuki DF250SS - Manual (Page 7)

6
Offset Drive Shaft
A
Offset Driveshaft
Suzuki incorporates a number of innovative designs into its
outboards. As a result, Suzuki offers some of the most compact
outboards in their class. One such design innovation is the offset
driveshaft.
Positioning the crankshaft in front of the driveshaft, the
outboard’s center of gravity is moved forward. This contributes to
the overall compact size and provides improved power and
performance. It also greatly reduces engine vibration since the
engine’s axis of inertia, the point where vibrations are at a
minimum, is in line with the upper engine mounts.
Streamlined Gear Case
The DF250SS takes advantage of the streamlined gear case
introduced on the DF300 to reduce drag created as the lower unit
moves through the water. This contributes to faster acceleration
and increased speed.
Suzuki’s Advanced Engineering Delivers Compact Designs
M
Two-Stage Cam Drive System
The DF250SS incorporates Suzuki’s proven two-stage cam drive
system that uses both gears and chain. The first stage gears transfer
power between the crankshaft and the drive shaft. While the
second stage transfers power from the drive shaft to the cam shafts
with a chain. This system allows use of smaller diameter cam
sprockets, which in turn allow for a reduction in valve angles also
reducing the size of
the cylinder head.
Additionally, the
timing chain system
incorporates an
automatic hydraulic
tensioner to keep the
chain properly
adjusted and provide
years of
maintenance-free
operation.
DF250SS PRODUCT INFORMATION