67C-9-14-4
3/25/03 10:36 Page 30
E
EMU00408
CHECKING BOLTS AND NUTS
1)
Check that bolts securing the cylinder
head and engine and the nut securing
the flywheel are tightened with their
specified tightening torque.
2)
Check the tightening torque of other
bolts and nuts.
EMU01172
CLEANING COOLING-WATER
PASSAGES
Flushing device equipped model
q
w
Perform this procedure right after opera-
tion for the most thorough flushing.
1)
2)
3)
After shutting off the engine, unscrew
the garden-hose connector 2 from
the fitting1 on the bottom cowling.
Screw the garden-hose connector 2
onto a garden hose 3 which is con-
nected to a fresh-water supply.
With the engine off, turn on the water
tap and let the water flush through
the cooling passages for about 15
minutes. Turn off the water and dis-
connect the garden hose3.
e
4)
When flushing is complete, reinstall
the garden-hose connector 2 on the
000705
fitting
1 on the bottom cowling.
Tighten the connector securely.
cC
Do not leave the garden-hose connector
loose on the bottom cowling fitting or let
the hose hang free during normal opera-
tion. Water will leak out of the connector
instead of cooling the engine, which can
cause serious overheating. Be sure the
connector is tightened securely on the fit-
ting after flushing the engine.
4-29
| Categories | Yamaha Outboard Manuals |
|---|---|
| Document Type | Boat Motor Manual Free Download. Marine Operator's Boating Guide. |
| Tags | Yamaha F30C, Yamaha F40C |
| Model Year | 2004 |
| Download File |
|
| Language | English |
| Product Brand | Yamaha Motor. Yamaha Motor Corporation, USA - Support Customer Relations for US: 1-800-962-7926
Yamaha Boats: 1-800-962-7926 Yamaha Outboard Customer Relations: 1-866-894-1626 , Yamaha Outboard |
| Document File Type | |
| Publisher | yamaha-motor.com |
| Wikipedia's Page | Yamaha Motor Company |
| Copyright | Attribution Non-commercial |
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