Operation; First-Time Operation; Fill Engine Oil; Breaking In Engine - Yamaha F50 Owner's Manual

Operation

EMU36381

First-time operation

EMU36391

Fill engine oil

The engine is shipped from the factory with-
out engine oil. If your dealer did not fill the oil,
you must fill it before starting the engine.
NOTICE: Check that the engine is filled
with oil before first-time operation to
avoid severe engine damage.
The engine is shipped with the following
sticker, which should be removed after en-
gine oil is filled for the first time. For more in-
formation on checking the engine oil level,
see page 56.
EMU30174

Breaking in engine

Your new engine requires a period of break-
in to allow mating surfaces of moving parts to
wear in evenly. Correct break-in will help en-
sure proper performance and longer engine
life. NOTICE: Failure to follow the break-in
procedure could result in reduced engine
life or even severe engine damage.
EMU27085
Procedure for 4-stroke models
Your new engine requires a period of 10
hours break-in to allow mating surfaces of
moving parts to wear in evenly.
TIP:
Run the engine in the water, under load (in
gear with a propeller installed) as follows.
54
For 10 hours for breaking in engine avoid ex-
tended idling, rough water and crowded ar-
eas.
1.
2.
[ECM01781]
3.
4.
EMU36400

Getting to know your boat

Different boats handle differently. Operate
cautiously while you learn how your boat
handles under different conditions and with
different trim angles (see page 70).
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ZMU01710

Checks before starting engine

EWM01921
If any item in "Checks before starting en-
gine" is not working properly, have it in-
spected and repaired before operating
the outboard motor. Otherwise, an acci-
dent could occur.
[ECM00801]
ECM00120
NOTICE
Do not start the engine out of water. Over-
heating and serious engine damage can
occur.
EMU36421

Fuel level

Be sure you have plenty of fuel for your trip.
For the first hour of operation:
Run the engine at varying speeds up to
2000 r/min or approximately half throttle.
For the second hour of operation:
Increase engine speed as much as nec-
essary to put the boat on plane (but
avoid full-throttle operation), then back
off on the throttle while keeping the boat
at a planing speed.
Remaining 8 hours:
Run the engine at any speed. However,
avoid operating at full throttle for more
than 5 minutes at a time.
After the first 10 hours:
Operate the engine normally.
WARNING