Procedure - Yamaha F2.5A Owner's Manual

Maintenance
 Store the outboard motor in a dry, well-
ventilated place, not in direct sunlight.
EMU28306

Procedure

EMU43032
Flushing in a test tank
ECM00302
NOTICE
Before starting the engine, make sure to
supply water to the cooling water passag-
es. Otherwise, the engine could overheat
and be damaged.
Cooling system flushing is essential to pre-
vent the cooling system from clogging up
with salt, sand, or dirt. In addition, fogging/lu-
bricating of the engine is mandatory to pre-
vent excessive engine damage due to rust.
Perform the flushing and fogging at the same
time.
F2.5A
1. Wash the outboard motor body using
fresh water. NOTICE: Do not spray wa-
ter into the air intake.
information, see page 67.
2. Place the fuel cock in the closed posi-
tion. Tighten the air vent screw on the
fuel tank cap.
3. Remove the top cowling and silencer
cover.
4. Remove the propeller. For further infor-
mation, see page 79.
5. Install the outboard motor on the test
tank.
63
For further
[ECM01841]
1. Water surface
2. Lowest water level
6. Fill the tank with fresh water to above the
level of the
NOTICE: If the fresh water level is be-
low the level of the anti-cavitation
plate, or if the water supply is insuffi-
cient, engine seizure may occur.
[ECM00292]
7. Run the engine at a fast idle for a few
minutes in neutral position. WARNING!
Do not touch or remove electrical
parts when starting or during opera-
tion. Keep hands, hair, and clothes
away from the flywheel and other ro-
tating parts while the engine is run-
ning.
[EWM00092]
8. Just prior to turning off the engine, quick-
ly spray "Fogging Oil" into the carbure-
tor. When properly done, the engine will
smoke excessively and almost stall.
9. If "Fogging Oil" is not available, run the
engine at a fast idle until the fuel system
empties and the engine stops.
10. Loosen the air vent screw by one turn.
Place the fuel cock in the open position.
11. Remove the grommet. Place a container
under the carburetor drain hole to catch
the gasoline, and then loosen the drain
screw.
anti-cavitation plate.