Lubrication; Cleaning And Anticorrosion Measures; Flushing Power Unit - Yamaha F75 Owner's Manual

Maintenance
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Lubrication

1. Install the spark plug(s) and torque to
proper specification. For information on
spark plug installation, see page 73.
2. Change the gear oil. For instructions, see
page 77. 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 72.
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.
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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.
2. Spray the outboard motor exterior with
"Yamaha Silicone Protectant".
3. Wax the cowling with a non-abrasive wax
such as "Yamaha Silicone Wax".
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Flushing power unit

Perform this procedure right after operation
for the most thorough flushing.
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NOTICE
Do not perform this procedure while the
engine is running. The water pump may be
damaged and severe damage from over-
heating can result.
1. After shutting off the engine, unscrew the
garden hose connector from the fitting on
the bottom cowling.
66
[ECM01840]
1. Fitting
2. Garden hose adapter
3. Garden hose connector
2. Screw the garden hose adapter onto a
garden hose, which is connected to a
fresh water supply, and then connect it to
the garden hose connector.
3. With the engine off, turn on the water tap
and let the water flush through the cool-
ing passages for about 15 minutes. Turn
off the water and disconnect the garden
hose adapter from the garden hose con-
nector.
4. Reinstall the garden hose connector onto
the fitting on the bottom cowling. Tighten
the connector securely. NOTICE: Do not
leave the garden hose connector
loose on the bottom cowling fitting or
let the hose hang free during normal
operation. Water will leak out of the
connector instead of cooling the en-
gine, which can cause serious over-