Maintenance
4.
Reinstall the filter element in the cup.
Make sure the O-ring is in position in the
the boat is tightly moored.
NOTE:
cup. Firmly screw the cup onto the filter Correct idling speed inspection is only possi-
housing.
ble if the engine is fully warmed up. If not
5.
6.
Attach the filter assembly to the bracket warmed up fully, the idle speed will measure
so that the fuel hoses are attached to the higher than normal. If you have difficulty ver-
filter assembly.
Run the engine and check the filter and quires adjustment, consult a Yamaha dealer
lines for leaks.
or other qualified mechanic.
ifying the idle speed, or the idle speed re-
EMU29040
Inspecting idling speed
2.
Verify whether the idle speed is set to
specification. For idle speed specifica-
tions, see page 33.
EWM00450
WARNING
EMU29111
Checking wiring and connectors
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
parts while the engine is running.
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
q
Check that each grounding wire is properly
secured.
q Check that each connector is engaged se-
curely.
q
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.
ZMU03737
EMU29120
Exhaust leakage
Start the engine and check that no exhaust
leaks from the joints between the exhaust
cover, cylinder head, and body cylinder.
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.
EMU29130
Water leakage
Start the engine and check that no water
leaks from the joints between the exhaust
cover, cylinder head, and body cylinder.
1.
Start the engine and allow it to warm up
fully in neutral until it is running smooth-
ly.
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
42
| Categories | Yamaha Outboard Manuals |
|---|---|
| Document Type | Boat Motor Manual Free Download. Marine Operator's Boating Guide. |
| Tags | Yamaha 25D |
| 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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