Yamaha F25 Automobile Parts User Manual


 
42
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.
[ECM01781]
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 45.
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.
[ECM00801]
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.
T
IP:
Run the engine in the water, under load (in
gear with a propeller installed) as follows.
For 10 hours for breaking in engine avoid ex-
tended idling, rough water and crowded ar-
eas.
1. For the first hour of operation:
Run the engine at varying speeds up to
2000 r/min or approximately half throttle.
2. 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.
3. Remaining 8 hours:
Run the engine at any speed. However,
avoid operating at full throttle for more
than 5 minutes at a time.
4. After the first 10 hours:
Operate the engine normally.
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 59).
EMU36412
Checks before starting engine
WARNING
EWM01920
If any item in the checks before starting
engine is not working properly, have it in-
spected and repaired before operating
the outboard motor. Otherwise an acci-
dent could occur.
NOTICE
ECM00120
Do not start the engine out of water. Over-
heating and serious engine damage can
occur.
EMU36560
Fuel level
Be sure you have plenty of fuel for your trip.
ZMU01710