Installation Requirements; Boat Horsepower Rating; Mounting The Outboard Motor; Battery Requirements - Yamaha F4 Manuel De L'utilisateur

Engine oil quantity:
0.6 L (0.63 US qt, 0.53 Imp.qt)
Lubrication system:
Wet sump
Recommended gear oil:
Yamalube Marine Gearcase Lube or
Hypoid gear oil
Recommended gear oil grade:
SAE 90 API GL-4
Gear oil quantity:
0.100 L (0.106 US qt, 0.088 Imp.qt)
Tightening torque:
Spark plug:
13 Nm (1.33 kgf-m, 9.6 ft-lb)
Engine oil drain bolt:
18 Nm (1.84 kgf-m, 13.3 ft-lb)
EMU33556

Installation requirements

EMU33565

Boat horsepower rating

EWM01561
WARNING
Overpowering a boat can cause severe in-
stability.
Before installing the outboard motor(s), con-
firm that the total horsepower of your out-
board motor(s) does not exceed the boats
maximum horsepower rating. See the boat's
capacity plate or contact the manufacturer.
EMU40171

Mounting the outboard motor

EWM02431
WARNING
Improper mounting of the outboard motor
could result in hazardous conditions, such
as poor handling, loss of control, or fire
hazards. If you are not able to mount the
outboard motor
Yamaha dealer.
To lift and mount the outboard motor, two
people are necessary. For further informa-
tion, see page 29.
Specifications and requirements
properly, consult
EMU40052

Battery requirements

When installing a battery, the lighting coil kit
must be installed. For installation of the bat-
tery and lighting coil kit, consult a Yamaha
dealer.
EMU34196

Propeller selection

Next to selecting an outboard motor, select-
ing the right propeller is one of the most im-
portant purchasing decisions a boater can
make. The type, size, and design of your pro-
peller have a direct impact on acceleration,
top speed, fuel economy, and even engine
life. Yamaha designs and manufactures pro-
pellers for every Yamaha outboard motor and
every application.
Your outboard motor came with a Yamaha
propeller selected to perform well over a
range of applications, but there may be uses
where a different propeller would be more
appropriate.
Your Yamaha dealer can help you select the
right propeller for your boating needs. Select
a propeller that will allow the engine to reach
the middle or upper half of the operating
range at full throttle with the maximum boat-
load. Generally, select a larger pitch propeller
for a smaller operating load and a smaller
pitch propeller for a heavier load. If you carry
loads that vary widely, select the propeller
that lets the engine run in the proper range for
your maximum load but remember that you
may need to reduce your throttle setting to
stay within the recommended engine speed
range when carrying lighter loads.
To check the propeller, see page 67.
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