2005 Yamaha Outboard 25D Boat Motor Owners Manual

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
Product Specification
CategoriesYamaha Outboard Manuals
Document TypeBoat Motor Manual Free Download. Marine Operator's Boating Guide.
Tags
Model Year2005
Download File
Please Enter the Security Characters Shown Below. Letters are Case Sensitive. Your download link will appear upon completing this step.
- 68 pages
LanguageEnglish
Product BrandYamaha 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 TypePDF
Publisheryamaha-motor.com
Wikipedia's PageYamaha Motor Company
CopyrightAttribution Non-commercial
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