2005 Yamaha Outboard 25D Boat Motor Owners Manual

Operation
EMU27403
Gasoline and oil mixing (100:1)
Gasoline to engine
oil ratio
Break-in period
After break-in
See page 19
100:1
If equipped with a portable fuel tank
1.
Pour oil into  the portable fuel  tank, and
then add gasoline.
ZMU03012
EMU27270
Ring Free Fuel Additive
Gasoline is a precise blend of many different
substances,  each  chosen   to  give  certain
characteristics. Gasoline  blends have  been
changing in recent years in response to con-
cerns  about  pollution  and  resulting   emis-
sions regulations.  One of the  most obvious
changes  has  been the  elimination  of  lead
from most fuels.
As gasoline has changed, the amount of ad-
ditives  such as  aromatics  and  oxygenates
has  increased. These  additives  are impor-
tant for  the engines  in passenger  cars, but
they can have  detrimental effects in  marine
engines,  because of  increased  deposits in
the combustion chamber. When enough de-
posits  collect,  piston  rings  begin  sticking.
Performance  drops   and  engine   wear  in-
creases dramatically.
While many additives  available may reduce
deposits, Yamaha  recommends  the use  of
Ring  Free  Fuel  Additive,  available   from
your Yamaha dealer. Ring Free Fuel  Addi-
tive has repeatedly proven its ability to clean
combustion deposits from inside the engine,
notably the critical piston-ring-land area, and
fuel system components.  Follow product la-
beling for use instructions.
1. Engine oil
2. Gasoline
2.
Replace  the  fuel  tank  cap  and  close
tightly.
3.
4.
Shake the fuel tank to mix  the fuel thor-
oughly.
Make sure that  the oil and gasoline are
mixed.
If equipped with a built-in fuel tank
1.
Pour oil into  a clean fuel  can, and then
add gasoline.
21
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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