Lubrication; Cleaning And Anticorrosion Measures; Cleaning The Outboard Motor; Checking Painted Surface Of Motor - Yamaha F4 Owner's Manual

1. Water flush plug
6. Turn on the water supply to the outboard
motor.
7. Start the engine, operate it for 10–15 min-
utes at engine idle speed, and then spray
"Yamaha Stor-Rite Engine Fogging Oil"
into the fogging hole of the silencer. For
further information, see steps 8-9 in
"Flushing in a test tank".
8. Turn off the water supply to the outboard
motor, and then remove the water flush
plug and tape.
9. Install the fogging hole cap and top cowl-
ing. Align the fuel cock with the closed po-
sition and tighten the air vent screw.
10. Install the propeller. For further informa-
tion, see page 62.
EMU39280

Lubrication

1. Install the spark plug and torque to proper
specification. For information on spark
plug installation, see page 58.
2. Change the gear oil. For instructions, see
page 62. 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 57.
1
ZMU02509
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.
EMU28423

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".
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.
Maintenance
[ECM01840]
ZMU06763
52