Yamaha F9.9C Owner's Manual page 148

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STORING OUTBOARD MOTOR
When storing your outboard motor for
prolonged periods of time ( 2 months or
longer ), several important procedures
must be performed to prevent expensive
damage.
It is advisable to have your outboard ser-
viced by an authorized Yamaha dealer
prior to storage. However, the following
procedures can be performed by the
owner with a minimum of tools.
cC
8 To prevent problems which can be
caused by oil entering the cylinder from
the sump, keep the engine in the atti-
tude shown when transporting and
storing it.
8 Do not place the engine on its side
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before the cooling water has drained
from it completely, or water may enter
the cylinder through the exhaust port
and cause problems.
8 Store the engine in a dry, well-ventilat-
ed place, not in direct sunlight.
1 Vertical position
2 Horizontal position (on the port side)
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1) Wash the motor body using fresh
water. (Refer to "MOTOR EXTERIOR")
2) Remove the fuel-line connection(s) or
shut off the fuel valve, if equipped.
from the motor.
3) Run the engine at idling speed sup-
plying fresh water to flush the cool-
ing-water passages until the fuel sys-
tem becomes empty and the engine
stops. (Refer to "Flushing Cooling
System")
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