Yamaha F40F Owner's Manual page 68

Maintenance
stops.
11. Drain the cooling water completely out
of the motor. Clean the body thoroughly.
12. If the "Fogging Oil" is not available, re-
move the spark plug(s). Pour a tea-
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.
TIP:
Store the fuel tank in a dry, well-ventilated
place, not in direct sunlight.
EMU29955
Flushing with the flushing attachment
1. Wash the outboard motor body using
fresh water. NOTICE: Do not spray wa-
ter into the air intake.
ther information, see page 64.
2. Disconnect the fuel line from the motor
or shut off the fuel cock, if equipped.
3. Remove the top cowling and propeller.
4. Install the flushing attachment over the
cooling water inlet. NOTICE: Do not run
the engine without supplying it with
cooling water. Either the engine wa-
ter pump will be damaged or the en-
gine will
overheating. Before starting the en-
gine, be sure to supply water to the
cooling water passages. Avoid run-
ning the outboard motor at high
speed while on the flushing attach-
ment, otherwise overheating could
occur.
[ECM02000]
62
For fur-
[ECM01840]
be damaged
1. Flushing attachment
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 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.
TIP:
from
When using the flushing attachment,
●
maintain adequate water pressure and a
steady water flow.
If the overheat alert device is activated,
●
turn the engine off, and consult your
Yamaha dealer.
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 the
intake silencer or the fogging hole of the
silencer cover, if equipped. When prop-
erly done, the engine will smoke exces-
sively and almost stall.
8. Drain the remained gasoline in the vapor
[EWM00091]