Storing Outboard Motor; Procedure - Yamaha 20D Owner's Manual

Maintenance
NOTE:
Place a towel or something similar under the
outboard motor to protect it from damage.
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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
CAUTION:
Do not place the outboard motor on its
G
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-
G
ventilated place, not in direct sunlight.
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Procedure

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Flushing in a test tank
ECM00300
CAUTION:
Do not run the engine without supplying
41
it with cooling water. Either the engine
water pump will be damaged or the en-
gine will be damaged from overheating.
Before starting the engine, be sure to
supply water to the cooling water passag-
es.
1.
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2.
3.
4.
1. Water surface
2. Lowest water level
ECM00290
CAUTION:
If the fresh water level is below the level
of the anti-cavitation plate, or if the water
supply is insufficient, engine seizure may
occur.
5.
Wash the outboard motor body using
fresh water. For further information, see
page 43.
Disconnect the fuel line from the motor
or shut off the fuel cock, if equipped.
Remove the engine top cowling and si-
lencer cover. Remove the propeller.
Install the outboard motor on the test
tank. Fill the tank with fresh water to
above the level of the anti-cavitation
plate.
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
1
2
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