Maintenance
75
7. 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]
8. Cooling system flushing is essential to
prevent the cooling system from clogging
up with salt, sand, or dirt. In addition, fog-
ging of the engine is mandatory to pre-
vent excessive engine damage due to
rust. Perform the flushing and fogging at
the same time. WARNING! Do not
touch or remove electrical parts when
starting or during operation. Keep
hands, hair, and clothes away from
the flywheel and other rotating parts
while the engine is running.
[EWM00091]
9. Run the engine at a fast idle for 10–15
minutes in neutral position.
10. 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.
11. Remove the outboard motor from the test
tank. For further details, see page 72.
12. Drain the cooling water completely out of
the outboard motor. Clean the body thor-
oughly.
13. Install the silencer cover/cap (if
equipped) and top cowling.
EMU41071
Lubrication
1. Change the gear oil. For instructions, see
page 88. Check the gear oil for the pres-
ence of water that indicates a leaky seal.
Seal replacement should be performed
by an authorized Yamaha dealer prior to
use.
2. Lubricate all grease fittings. For further
details, see page 82.
For long-term storage, fogging the engine
with fogging oil is recommended. Contact
your Yamaha dealer for information about
fogging oil and procedures for your outboard
motor.
EMU30267
Cleaning and anticorrosion measures
1. Wash down the exterior of the outboard
motor with fresh water and dry off com-
pletely. NOTICE: Do not spray water
into the air intake.
[ECM01840] For further in-
formation, see page 77.
1. Water surface
2. Lowest water level
ZMU07891
U6DR30E0.book Page 75 Friday, November 30, 2012 4:27 PM
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