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18
PROPELLER SELECTION,
INSTALLATION AND
REMOVAL
PROPELLER SELECTION
It is essential to use a propeller on your out-
board motor that is properly matched to your
boat’s operating characteristics. The speed of
the engine when you operate your boat at full
throttle depends on the propeller you use.
Excessive engine speed can seriously damage
the motor, while low engine speed at full throttle
will adversely affect the performance. Your
operating load will also affect propeller selec-
tion. Smaller loads generally require larger-
pitch propellers; larger loads generally require
smaller-pitch propellers. Your authorized Suzuki
Marine Dealer will assist you in selecting a suit-
able propeller for your boat.
You can determine if your propeller is appropri-
ate for use with your boat by using a tachome-
ter to measure engine speed when operating
your boat at full throttle, under minimum load
conditions. If you are using an appropriate pro-
peller, the engine speed will be within the fol-
lowing range:
If the engine speed is not within this range, con-
sult your authorized Suzuki Marine Dealer to
determine which propeller size is best for you.
NOTICE
Installing a propeller with either too much or
too little pitch will cause incorrect maximum
engine speed, which may result in severe
damage to the motor.
Ask your authorized Suzuki marine dealer to
assist you in selecting a suitable propeller for
your boat.
Full throttle
operating range
DF300B
5300 – 6300
r/min. (min
-1
)
DF325A
5300 – 6300
r/min. (min
-1
)
DF350A
5700 – 6300
r/min. (min
-1
)
PROPELLER INSTALLATION AND
REMOVAL
8
WARNING
Failure to take proper precautions when
installing or removing the propeller can result
in severe personal injury.
When installing or removing the propeller:
• Always shift into “Neutral” and remove the
emergency stop switch lock plate so that
the motor cannot be started accidentally.
• Wear gloves to protect hands, and “lock”
the propeller by placing a block of wood
between the blades and the anti-cavitation
plate.
NOTICE
Using the improper combination of front and
rear propellers can cause lower unit damage.
Confirm the size of the front and rear propel-
lers when installing them. The front and rear
propellers must be the same number of
blades, diameter and pitch.