Owner`s manual

Maintenance
76
EMU39637
Flushing with the water flush plug (option-
al) (F4, F6)
NOTICE
ECM00301
Before starting the engine, make sure to
supply water to the cooling water passag-
es. Otherwise, the engine could overheat
and be damaged.
Cooling system flushing is essential to pre-
vent the cooling system from clogging up with
salt, sand, or dirt. In addition, fogging of the
engine is mandatory to prevent excessive en-
gine damage due to rust. Perform the flushing
and fogging at the same time.
1. Wash the outboard motor body using
fresh water. NOTICE: Do not spray wa-
ter into the air intake.
[ECM01840] For further
information, see page 77.
2. Fill the built-in fuel tank with fresh fuel and
add one ounce of “Yamaha Fuel Condi-
tioner and Stabilizer” to each gallon of fu-
el.
TIP:
The use of “Yamaha Fuel Conditioner and
Stabilizer” eliminates the need to drain the
fuel system. Consult a Yamaha dealer or oth-
er qualified mechanic if the fuel system is to
be drained instead.
3. When using a portable fuel tank, discon-
nect the fuel hose, install the fuel joint
cap, and then align the fuel cock with the
closed position.
4. Remove the top cowling and fogging hole
cap.
5. Remove the propeller. For further infor-
mation, see page 89.
6. Remove the screw located beside the
“ ” (wash) mark on the lower case.
Install the water flush plug and connect it
to a fresh water tap.
7. Cover the cooling water inlet with tape.
1. Closed position
1. Cap
ZMU06871
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1
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ZMU06822
U6BV37E0.book Page 76 Wednesday, May 1, 2013 8:56 AM