Yamaha VX250B, Owner'S Manual

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Yamaha outboard motors are fitted with
propellers 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 pro-
pellers, and can advise you and install a
propeller on your outboard that is best suit-
ed 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.
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