Maintenance
48
Place a towel or something similar under the
outboard motor to protect it from damage.
EMU30272
Storing outboard motor
When storing your Yamaha outboard motor
for prolonged periods of time (2 months or
longer), several important procedures must
be performed to prevent excessive damage.
It is advisable to have your outboard motor
serviced by an authorized Yamaha dealer
prior to storage. However, you, the owner,
with a minimum of tools, can perform the fol-
lowing procedures.
ECM01411
● Do not place the outboard motor on its
side before the cooling water has
drained from it completely, otherwise
water may enter the cylinder through
the exhaust port and cause engine trou-
ble.
● Store the outboard motor in a dry, well-
ventilated place, not in direct sunlight.
EMU28305
Procedure
EMU28335
Flushing in a test tank
ECM00301
Before starting the engine, make sure to
supply water to the cooling water passag-
es. Otherwise, the engine could overheat
and be damaged.
1. Wash the outboard motor body using
fresh water. NOTICE: Do not spray wa-
ter into the air intake.
[ECM01840] For fur-
ther information, see page 49.
2. Disconnect the fuel line from the motor
or shut off the fuel cock, if equipped.
3. Remove the engine top cowling and si-
lencer cover. Remove the propeller.
4. Install the outboard motor on the test
tank. Fill the tank with fresh water to
above the level of the anti-cavitation
plate. NOTICE: If the fresh water level
is below the level of the anti-cavita-
tion plate, or if the water supply is in-
sufficient, engine seizure may occur.
[ECM00291]
5. Cooling system flushing is essential to
prevent the cooling system from clog-
ging up with salt, sand, or dirt. In addi-
tion, fogging/lubricating of the engine is
mandatory to prevent excessive engine
damage due to rust. Perform the flush-
ing and fogging at the same time.
WARNING! Do not touch or remove
electrical parts when starting or dur-
ing operation. Keep hands, hair, and
clothes away from the flywheel and
other rotating parts while the engine
is running.
[EWM00091]
6. Run the engine at a fast idle for a few
minutes in neutral position.
7. Just prior to turning off the engine, quick-
ly spray “Fogging Oil” alternately into
each carburetor or the fogging hole of
the silencer cover, if equipped. When
1. Water surface
2. Lowest water level
69R-9-2A-1E0.book 48 ページ ２０１０年２月３日 水曜日 午後５時１８分
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