Maintenance
spilled fuel in a rag.
parts while the engine is running.
3.
Remove the filter element, and wash it in
solvent. Allow it to dry. Inspect the filter
element and O-ring to make sure they
are in good condition. Replace them if
necessary. If any water is found in the
fuel, the Yamaha portable fuel tank or
other fuel tanks should be checked and
cleaned.
q
2-hp models: The propeller rotates
whenever the engine is running. Do not
move the throttle control lever from the
start position during warm-up. The boat
could
unexpectedly start to move,
which could result in an accident.
ECM00490
CAUTION:
This procedure must be performed while
the outboard motor is in the water. A
flushing attachment or test tank can be
used.
2
3
A diagnostic tachometer should be used for
this procedure. Results may vary depending
on whether testing is conducted with the
flushing attachment, in a test tank, or with the
outboard motor in the water.
4
1
ZMU02079
1.
Start the engine and allow it to warm up
fully in neutral until it is running smooth-
ly.
1.
Filter cup
2.
3.
4.
Filter element
Filter housing
O-ring
2-hp
model: Warm the engine with the
throttle in the start position or less. If the
outboard is mounted on a boat, be sure
the boat is tightly moored.
NOTE:
Correct idling speed inspection is only possi-
4.
Reinstall the filter element in the cup.
Make sure the O-ring is in position in the
cup. Firmly screw the cup onto the filter
housing.
5.
6.
Attach the filter assembly to the bracket ble if the engine is fully warmed up. If not
so that the fuel hoses are attached to the warmed up fully, the idle speed will measure
filter assembly.
higher than normal. If you have difficulty ver-
Run the engine and check the filter and ifying the idle speed, or the idle speed re-
lines for leaks.
quires adjustment, consult a Yamaha dealer
or other qualified mechanic.
EMU29040
Inspecting idling speed
EWM00450
WARNING
2.
Verify whether the idle speed is set to
specification. For idle speed specifica-
tions, see page 36.
q
q
Do not touch or remove electrical parts
when starting or during operation.
Keep hands, hair, and clothes away
from the flywheel and other rotating
EMU29061
Checking water in engine oil tank
A translucent water drain hose is connected
from the bottom of the oil tank to the filler
46
| Categories | Yamaha Outboard Manuals |
|---|---|
| Document Type | Boat Motor Manual Free Download. Marine Operator's Boating Guide. |
| Tags | Yamaha 90D |
| Model Year | 2005 |
| 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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