Lubrication; Cleaning The Outboard Motor - Yamaha 40v Owner's Manual

Maintenance
above the level of the anti-cavitation
plate. NOTICE: If the fresh water level
is below the level of the anti-cavita-
tion plate, or if the water supply is in-
sufficient, engine seizure may occur.
[ECM00291]
1. Water surface
2. Lowest water level
5. Cooling system flushing is essential to
prevent the cooling system from clog-
ging up with salt, sand, or dirt. In addi-
tion, fogging/lubricating of the engine is
mandatory to prevent excessive engine
damage due to rust. Perform the flush-
ing and fogging at the same time.
WARNING! Do not touch or remove
electrical parts when starting or dur-
ing operation. Keep hands, hair, and
clothes away from the flywheel and
other rotating parts while the engine
is running.
[EWM00091]
6. Run the engine at a fast idle for a few
minutes in neutral position.
7. Just prior to turning off the engine, quick-
ly spray "Fogging Oil" alternately into
each carburetor or the fogging hole of
the silencer cover, if equipped. When
properly done, the engine will smoke ex-
cessively and almost stall.
8. Remove the outboard motor from the
56
test tank.
9. Install the silencer cover/cap of fogging
hole and top cowling.
10. If the "Fogging Oil" is not available, run
the engine at a fast idle until the fuel sys-
tem becomes empty and the engine
stops.
11. Drain the cooling water completely out
of the motor. Clean the body thoroughly.
1
12. If the "Fogging Oil" is not available, re-
move the spark plug(s). Pour a tea-
2
spoonful of clean engine oil into each
cylinder. Crank several times manually.
Replace the spark plug(s).
13. Drain the fuel from the fuel tank.
ZMU02051
TIP:
Store the fuel tank in a dry, well-ventilated
place, not in direct sunlight.
EMU28402

Lubrication

1. Install the spark plug(s) and torque to
proper specification. For information on
spark plug installation, see page 63.
2. Change the gear oil. For instructions,
see page 66. 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 62.
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
system with fresh water.