Maintenance
70
(2) Lubricate all grease fittings. For details,
see page 77.
TIP:
For long-term storage, fogging the engine
with fogging oil is recommended. Contact
your Yamaha dealer for information about
fogging oil and procedures for your outboard
motor.
EMU49250
Flushing cooling water passage
Perform this procedure right after operation
for the most thorough flushing.
ECM01531
Do not perform this procedure while the
engine is running. The water pump may be
damaged and severe damage from over-
heating can result.
(1) Remove the garden hose connector cap
on the bottom cowling.
(2) Connect the garden hose to the garden
hose connector.
(3) With the engine off, turn on the water
supply and let the water flush through
the cooling water passages for about 15
minutes.
(4) Turn off the water supply, and then dis-
connect the garden hose from the gar-
den hose connector.
(5) Install the garden hose connector cap on
the bottom cowling securely.
NOTICE:
If
the garden hose connector cap is not
properly installed, cooling water can
leak out and the engine can overheat
during operation.
[ECM05750]
TIP:
When flushing the cooling water passages
with the boat in the water, tilting the outboard
motor up until it is completely out of the water
will achieve better results.
(6) To prevent water from freezing in the
cooling water passages, tilt the outboard
motor down and wait at least 3 minutes
or disconnect the garden hose connec-
tor to drain the water.
1. Garden hose connector cap
1
1. Garden hose
2. Garden hose adapter (commercially avail-
able)
3. Garden hose connector
3
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U6KNK0E0.book Page 70 Monday, November 7, 2022 10:23 AM
