2005 Yamaha Outboard 90D Boat Motor Owners Manual

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
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.
- 77 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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