Battery Requirement; Battery Specifications; Propeller Selection - Yamaha F50F Owner's Manual

ECM01050
CAUTION:
All 4-stroke engines are shipped from the
factory without engine oil.
EMU25700

Battery requirement

ECM01060
CAUTION:
Do not use a battery that does not meet
the specified capacity. If a battery which
does not meet specifications is used, the
electric system could perform poorly or
be overloaded, causing electric system
damage.
For electric start models, choose a battery
which meets the following specifications.
EMU25720

Battery specifications

Minimum cold cranking amps (CCA/EN):
430.0 A
Minimum rated capacity (20HR/IEC):
70.0 Ah
NOTE:
The engine cannot be started if battery volt-
age is too low.
EMU25742
The performance of your outboard motor will
be critically affected by your choice of propel-
ler, as an incorrect choice could adversely
affect performance and could also seriously
damage the motor. Engine speed depends
on the propeller size and boat load. If engine
speed is too high or too low for good engine
performance, this will have an adverse effect
on the engine.
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 suit-
ZMU01710
able as it enables the correct engine speed
to be maintained. Conversely, a larger-pitch
propeller is more suitable for a smaller oper-
ating 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 ap-
plication.
General information

Propeller selection

5