Yamaha 50G Owner's Manual page 130

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Do not use the tilt support lever/knob
when trailering the boat. The outboard
motor could shake loose from the tilt
support and fall. If the motor can not be
trailered in the down position, use an
additional support device to secure it in
the up position.
EMU01796
STORING OUTBOARD MOTOR
When storing your Yamaha outboard
motor for prolonged periods of time (2
months or longer), several important pro-
cedures must be performed to prevent
excessive damage. This is especially
important for your oil injection-equipped
outboard motor due to the lean oil ratios
used at idle prior to shutting the engine
off for the season. It is advisable to have
your outboard motor serviced by an
authorized Yamaha dealer prior to stor-
age. However, the following procedures
can be performed by you, the owner, with
a minimum of tools.
EMU01508
1) Wash the motor body using fresh
water. (Refer to "MOTOR EXTERIOR"
for details.)
2) Remove the fuel-line connection(s)
from the motor or shut off the fuel
valve, if equipped.
3) Run the engine at idling speed while
supplying fresh water to flush the
cooling-water
until the fuel system becomes empty
and the engine stops. (Refer to
"FLUSHING COOLING SYSTEM" for
details.)
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