Yamaha DX150B, Owner'S Manual

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EMU00338*
Flushing Cooling System and Fogging
Engine
Cooling system flushing is essential to
prevent the cooling system from clogging
up with salt, sand, or dirt. In addition, fog-
ging of the engine is mandatory to pre-
vent expensive engine damage due to
rust. Perform the flushing and fogging at
the same time.
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8
Do not touch or remove electrical parts
when starting or during operation.
8
Keep hands, hair and clothes away
from flywheel and other rotating parts
while engine is running.
EMU00344
Flushing with the Flushing Device
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Keep yourself and others away from the
propeller while engine is running.
c C
Avoid running the outboard at high
speed while flushing, or overheating
could occur.
1) Remove the top cowling and silencer
cover.
2) Unscrew the garden-hose connector
2
from the bottom cowling fitting
1
.
3) Screw the garden-hose connector
2
onto a garden-hose
3
which is con-
nected to a fresh-water supply.
4) Open the water tap and let the water
flush through the cooling passages.
5) Run the engine at an idle speed in
neutral for about 15 minutes.
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