2005 Yamaha Outboard 40D 50D Boat Motor Owners Manual

Maintenance
with a minimum of tools, can perform the fol-
lowing procedures.
ECM01411
CAUTION:
1
2
q
Do not place the outboard motor on its
side   before   the   cooling   water   has
drained  from it  completely,  otherwise
water  may enter  the  cylinder  through
the exhaust port and cause engine trou-
ble.
ZMU02051
q
Store the outboard motor in a dry, well-
ventilated place, not in direct sunlight.
1. Water surface
2. Lowest water level
EMU28301
Procedure
5.
Fill the tank with fresh water to above the
level of the anti-cavitation plate.
EMU28372
Flushing in a test tank
ECM00300
1.
Wash  the  outboard  motor body  using
fresh water. For further information, see
page 41.
Fill the fuel tank with  fresh fuel and add
one ounce of Yamaha Fuel Conditioner
and  Stabilizer(Part  No.  LUB-FUELC-
CAUTION:
Do not run  the engine without supplying
it  with cooling  water.  Either  the engine
water pump  will  be damaged  or the  en-
gine will  be  damaged from  overheating.
Before  starting  the  engine,  be  sure  to
supply water to the cooling water passag-
es.
2.
12-00)
to each gallon of fuel.
NOTE:
The use  of  Yamaha Fuel  Conditioner and
Stabilizereliminates  the need  to drain  the
fuel system. Consult your Yamaha dealer or
other qualified mechanic if the fuel system is
to be drained instead.
ECM00290
CAUTION:
If the fresh  water level is below  the level
of the anti-cavitation plate, or if the water
supply is insufficient, engine seizure may
occur.
3.
4.
Remove the engine  top cowling and si-
lencer cover.
Install  the  outboard motor  on  the  test
tank.
6.
Cooling system  flushing  is essential  to
prevent  the cooling  system  from  clog-
ging up  with salt, sand,  or dirt. In  addi-
tion, fogging of the engine is mandatory
to  prevent  excessive   engine  damage
due  to  rust.  Perform the  flushing  and
fogging at the same time.
EWM00090
WARNING
q
Do not touch or remove electrical parts
39
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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