Yamaha 13.5A Owner's Manual page 126

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8 Do not place the engine on its side
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.
EMK23712
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")
4) Remove the battery for Electric start
model. (Refer to "Disconnecting the
Battery")
5) Drain the cooling water completely
out of the motor.
Clean the body thoroughly.
6) Remove the spark plug(s).
7) Pour a teaspoonful of clean engine oil
into the cylinder(s).
8) Crank several time manually.
9) Replace the spark plug(s).
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