E
1-7
Yamaha outboard motors are fitted with pro-
pellers chosen to perform well over a range
of applications, but there may be uses
where a propeller with a different pitch
would be more appropriate. For a greater
operating load, a smaller-pitch propeller is
more suitable as it enables the correct
engine speed to be maintained. Conversely,
a larger-pitch propeller is more suitable for a
smaller operating load.
Yamaha dealers stock a range of propellers,
and can advise you and install a propeller
on your outboard that is best suited to your
application.
NOTE:
At full throttle and under a maximum boat
load, the engine’s rpm should be within the
upper half of the full throttle operating
range, as listed in “SPECIFICATIONS” on
page 4-1. Select a propeller which fulfills
this requirement.
If operating under conditions which allow
the engine’s rpm to rise above the maxi-
mum recommended range (such as light
boat loads), reduce the throttle setting to
maintain the rpm in the proper operating
range.
1 Propeller diameter (in inches)
2 Propeller pitch (in inches)
3 Type of propeller (propeller mark)
Refer to the section “CHECKING PRO-
PELLER” for instructions on propeller
removal and installation.
001697
9-1/4 x 11 - J
qwe
8D
9.9D, 15D
9-1/4 x 9-3/4 - J
602021
qwe
9.9F, 15F
63V-9-K2-A0-1 3/17/03 5:51 PM Page 20
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