Owner`s manual
Maintenance
74
TIP:
The use of “Yamaha Fuel Conditioner and
Stabilizer” eliminates the need to drain the
fuel system. Consult your Yamaha dealer or
other qualified mechanic if the fuel system is
to be drained instead.
3. Remove the engine top cowling and si-
lencer cover.
4. Remove the propeller. For further infor-
mation, see page 89.
5. Install the outboard motor on the test
tank.
6. Fill the tank with fresh water to above the
level of the anti-cavitation plate. NOTICE:
If the fresh water level is below the lev-
el of the anti-cavitation plate, or if the
water supply is insufficient, engine
seizure may occur.
[ECM00291]
7. Run the engine at a fast idle for 10–15
minutes in neutral position. WARNING!
Do not touch or remove electrical
parts when starting or during opera-
tion. Keep hands, hair, and clothes
away from the flywheel and other ro-
tating parts while the engine is run-
ning.
[EWM00091]
8. Just prior to turning off the engine, quickly
spray “Yamaha Stor-Rite Engine Fogging
Oil” alternately into each carburetor or the
fogging hole of the silencer cover, if
equipped. When properly done, the en-
gine will smoke excessively and almost
stall.
9. Remove the outboard motor from the test
tank.
10. Install the silencer cover/cap and top
cowling.
11. Drain the cooling water completely out of
the motor. Clean the body thoroughly.
12. Install the propeller. For further informa-
tion, see page 89.
F4, F6
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.
1. Water surface
2. Lowest water level
U6BV37E0.book Page 74 Wednesday, May 1, 2013 8:56 AM