Storing Outboard Motor; Conditioning And Stabilizing Gasoline - Yamaha F4 Owner's Manual

 Do not place the outboard motor on its side
in an attitude other than those shown in the
preceding illustrations.
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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 pri-
or to storage. However, the following proce-
dures can be performed by the owner.
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NOTICE
 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 valve and cause engine trouble.
 Transport and store the outboard motor
as specified in "Dismounting the out-
board motor".
 Store the outboard motor in a dry, well-
ventilated place, not in direct sunlight.
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Conditioning and stabilizing gasoline

When preparing to store a boat for extended
periods (2 months or longer) it is best to com-
pletely remove all gasoline from the boat's
fuel tank(s). If it is not possible to remove the
gasoline, add one ounce of "Yamalube Fuel
Stabilizer & Conditioner Plus" to each gallon
of gasoline in a full tank of gasoline to provide
fuel stability and corrosion protection.
Maintenance
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