Owner`s manual

E
4-5
903021
605014
EMU00338
Flushing Cooling System and Fogging
Engine
Cooling system flushing is essential to pre-
vent the cooling system from clogging up
with salt, sand, or dirt. In addition, fogging of
the engine is mandatory to prevent expen-
sive engine damage due to rust. Perform
the flushing and fogging at the same time.
w
8 Do not touch or remove electrical
parts when starting or during opera-
tion.
8 Keep hands, hair and clothes away
from flywheel and other rotating parts
while engine is running.
EMU01544
Flushing with the Flushing Attachment
cC
Avoid running the outboard at high
speed while on the flushing attachment,
or overheating could occur.
1) Remove the top cowling and silencer
cover. Remove the propeller.
2) Install a flushing attachment to the
lower unit. (A flushing attachment is
available from a Yamaha dealer).
3) Run the engine at a fast idle for 10-15
minutes while supplying water.
4) Just prior to turning off the engine,
quickly spray “Yamaha Stor-Rite Engine
Fogging Oil” (Part No. LUB-STRRT-12-
00) alternately into each intake mani-
fold. When properly done, the engine
will smoke excessively and almost stall.
5) Remove the flushing attachment and
wipe off any excess water.
6) Install the silencer cover and top cowl-
ing. Install the propeller.
Z250, LZ250
Z250, LZ250
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