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Maintenance
34
EMU28400
Lubrication (except oil injection
models)
1. Grease the spark plug threads and in-
stall the spark plug(s) and torque to
proper specification. For information on
spark plug installation, see page 37.
2. Change the gear oil. For instructions,
see page 42. Inspect the 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.
3. Grease all grease fittings. For further de-
tails, see page 37.
EMU28420
Cleaning and anticorrosion
measures
1. Wash down the exterior of the outboard
motor with fresh water and dry off com-
pletely.
2. Spray the outboard motor exterior with
“Yamaha Silicone Protectant” (Part No.
LUB-SILCNE-13-00).
CAUTION:
ECM01330
If equipped Electronic Fuel Injection: Do
not spray when the engine is running. Al-
so, do not spray near the silencer and ox-
ygen sensor cover or into the engine.
Otherwise the oxygen sensor for Elec-
tronic Fuel Injection system could be
damaged.
3. Wax the cowling with a non-abrasive
wax such as “Yamaha Silicone Wax”
(Part No. ACC-11000-15-02).
EMU28450
Cleaning the outboard motor
After use, wash the exterior of the outboard
motor with fresh water. Flush the cooling
system with fresh water.
NOTE:
For cooling system flushing instructions, see
page 31.
EMU28460
Checking painted surface of motor
Check the motor for scratches, nicks, or flak-
ing paint. Areas with damaged paint are
more likely to corrode. If necessary, clean
and paint the areas. A touch-up paint is avail-
able from your Yamaha dealer.
EMU28483
Periodic maintenance
WARNING
EWM01070
Be sure to turn off the engine when you
perform maintenance unless otherwise
specified. If you or the owner is not famil-
iar with machine servicing, this work
should be done by your Yamaha dealer or
other qualified mechanic.
Maintenance, replacement, or repair of
the emission control devices and sys-
tems may be performed by any marine
engine repair establishment or individual.
All warranty repairs, however, including
those to the emission control system,
must be performed by an authorized
Yamaha marine dealership.
A service manual is available for purchase
through your Yamaha dealer for owners who