Procedure - Yamaha 2C Owner's Manual

ECM01411
NOTICE
Do not place the outboard motor on its
G
side before the cooling water has
drained from it completely, otherwise
water may enter the cylinder through the
exhaust port and cause engine trouble.
Store the outboard motor in a dry, well-
G
ventilated place, not in direct sunlight.
EMU28304

Procedure

EMU28315
Flushing in a water tank
1. Wash the outboard motor body using
fresh water. NOTICE: Do not spray wa-
ter into the air intake.
information, see page 33.
2. Place the fuel cock in the closed position
and disconnect the fuel line if equipped.
Tighten the air vent screw, if equipped.
3. Remove the engine top cowling and si-
lencer cover.
4. Install the outboard motor on the test
tank.
1. Water surface
2. Lowest water level
5. Fill the tank with fresh water to above the
level of the anti-cavitation plate. NOTICE:
If the fresh water level is below the lev-
el of the anti-cavitation plate, or if the
water supply is insufficient, engine
seizure may occur.
For further
[ECM01840]
[ECM00291]
6. Cooling system flushing is essential to
prevent the cooling system from clogging
up with salt, sand, or dirt. In addition, fog-
ging/lubricating of the engine is mandato-
ry to prevent excessive engine damage
due to rust. Perform the flushing and fog-
ging at the same time. WARNING! Do
not touch or remove electrical parts
when starting or during operation.
Keep hands, hair, and clothes away
from the flywheel and other rotating
parts while the engine is running.
[EWM00091]
7. Run the engine at a fast idle for a few
minutes in neutral position.
8. Just prior to turning off the engine, quickly
spray "Fogging Oil" alternately into each
carburetor or the fogging hole of the si-
lencer cover, if equipped. 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. Remove the outboard motor from the test
tank.
11. Install the silencer cover or fogging hole
cap, and the top cowling.
12. Drain the cooling water completely out of
the motor. Clean the body thoroughly.
13. If "Fogging Oil" is not available, remove
the spark plug(s). Pour a teaspoonful of
clean engine oil into each cylinder. Crank
several times manually. Replace the
spark plug(s).
14. Drain the fuel from both the built-in and
portable fuel tanks, on equipped models.
TIP:
Portable fuel tank equipped models: Store the
portable fuel tank in a dry, well-ventilated
place, not in direct sunlight.
Maintenance
32