Specifications and requirements
ing and running problems, as well as seri- Gasoline Filtration
ous fuel system and internal engine Yamaha outboard motors are equipped with
damage.
internal fuel filters. However, excessive water
or debris entering your engine’s fuel system
could prematurely clog the internal filters,
causing starting and running problems, fuel
system damage, and internal engine damage.
Ethanol is a strong solvent (cleaning agent) Therefore, it is recommended that an external
Gasoline containing ethanol has several
properties that may cause boat fuel system
problems.
q
that can clean gum and varnish deposits
from a boat’s fuel system, particularly in old-
er boats, as well as tanks and pipes used in
gasoline distribution. These released de-
posits contaminate the fuel and can cause
problems, such as clogged fuel filters, car-
buretors, or fuel injectors, which could re-
sult in engine damage.
Ethanol may dissolve resins used in the
construction of fiberglass fuel tanks. The
dissolved resins contaminate the fuel and
can cause problems, such as clogged fuel
filters, carburetors, or fuel injectors, which
could result in engine damage.
10-micron
stalled on your boat and serviced frequently.
Consult your authorized Yamaha dealer for a
10-micron
quirements.
water-separating fuel filter be in-
filter that meets your engine’s re-
EMU41340
Gasoline Additives
Gasoline blends change to meet automobile
emission regulations and economic condi-
tions. Additives, added by gasoline distribu-
tors, necessary for proper automobile engine
operation and durability, may not be sufficient
for typical boat applications. Intake valve and
combustion chamber deposits may accumu-
late in boat engines more rapidly than en-
countered in automotive use. In addition,
gasoline used for boating will typically age
longer between refills than gasoline used in
automobiles, resulting in stale and unusable
gasoline that may cause starting and running
problems, fuel system damage, and internal
engine damage.
Yamaha recommends the use of two Ya-
malube gasoline additives to reduce internal
deposits and extend the storage life of gaso-
line. Continuous use of Yamalube Ring Free
Fuel Additive Plus reduces harmful internal
deposits. Yamalube Fuel Stabilizer & Condi-
tioner Plus added to fresh gasoline will help
protect the fuel system from varnishing while
helping to keep the gasoline’s octane level
from decreasing excessively during storage.
Other additives may also be available on the
market that may have varying degrees of ef-
q
q
Ethanol is hygroscopic (has a strong attrac-
tion to water). Therefore, any water that in-
advertently
enters
the
fuel
system,
including moisture that is absorbed from the
air, will mix with the ethanol in the gasoline.
If the amount of water is excessive, the eth-
anol and water mixture will separate from
the gasoline in a layer at the bottom of the
fuel tank. This ethanol and water mixture is
very corrosive to aluminum fuel tanks and
fuel system components.
The usable life span of E10 gasoline may
be shorter than the normal length of off-sea-
son boat storage, causing starting and run-
ning problems related to stale fuel.
q
For more information on using fuel containing
ethanol, visit: http://www.yamaha-motor.com
17
| Categories | Yamaha Outboard Manuals |
|---|---|
| Document Type | Boat Motor Manual Free Download. Marine Operator's Boating Guide. |
| Tags | Yamaha VF200, Yamaha VF225, Yamaha VF250 |
| Model Year | 2008 |
| 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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