Maintenance
44
EMU28402
Lubrication
1.
Install the spark plug(s) and torque to
proper specification. For information on
spark plug installation, see page 48.
2.
Change the gear oil. For instructions, see
page 51. Inspect the oil for the presence
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 47.
TIP:
For long-term storage, fogging the engine
with oil is recommended. Contact your
Yamaha dealer for information about fogging
oil and procedures for your engine.
EMU28451
Cleaning the outboard motor
After use, wash the exterior of the outboard
motor with fresh water. Flush the cooling sys-
tem with fresh water.
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 available from
your Yamaha dealer.
EMU37074
Periodic maintenance
WARNING
EWM01981
These procedures require mechanical
skills, tools, and supplies. If you do not
have the proper skills, tools, or supplies to
perform a maintenance procedure, have a
Yamaha dealer or other qualified mechan-
ic do the work.
The procedures involve disassembling
the motor and exposing dangerous parts.
To reduce the risk of injury from moving,
hot, or electrical parts:
●
Turn off the engine and keep engine
shut-off cord (lanyard) with you when
you perform maintenance unless other-
wise specified.
●
Allow the engine to cool before handling
hot parts or fluids.
●
Always completely reassemble the mo-
tor before operation.
EMU28511
Replacement parts
If replacement parts are necessary, use only
genuine Yamaha parts or parts of equivalent
design and quality. Any part of inferior quality
may malfunction, and the resulting loss of
control could endanger the operator and pas-
sengers. Yamaha genuine parts and acces-
sories are available from your Yamaha
dealer.
EMU34151
Severe operating conditions
Severe operating conditions involve one or
more of the following types of operation on a
regular basis:
●
Operating continuously at or near maxi-
mum engine speed (rpm) for many hours
●
Operating continuously at a low engine
speed (rpm) for many hours
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