Maintenance
57
plate, or if the water supply is insuffi-
cient, engine seizure may occur.
[ECM00291]
7.
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]
8.
Run the engine at a fast idle for a few
minutes in neutral position.
9.
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.
10. Remove the outboard motor from the test
tank.
11. Install the silencer cover/cap of fogging
hole (if equipped) and top cowling.
12. 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.
13. Drain the cooling water completely out of
the motor. Clean the body thoroughly.
14. If the “Fogging Oil” is not available, re-
move the spark plug(s). Pour a teaspoon-
ful of clean engine oil into each cylinder.
Crank several times manually. Replace
the spark plug(s).
15. Drain the fuel from the fuel tank.
16. 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 64.
2.
Change the gear oil. For instructions, see
page 69. 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 63.
1. Water surface
2. Lowest water level
ZMU02051
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