Specifications and requirements
22
tanks and fuel system components.
●
The usable life span of E10 gasoline may
be shorter than the normal length of off-
season boat storage, causing starting and
running problems related to stale fuel.
For more information on using fuel contain-
ing ethanol, visit: http://www.yamaha-mo-
tor.com
Gasoline Filtration
Yamaha outboard motors are equipped with
internal fuel filters. However, excessive wa-
ter or debris entering your engine’s fuel sys-
tem could prematurely clog the internal
filters, causing starting and running prob-
lems, fuel system damage, and internal en-
gine damage. Therefore, it is recommended
that an external 10-micron water-separating
fuel filter be installed on your boat and ser-
viced frequently. Consult your authorized
Yamaha dealer for a 10-micron filter that
meets your engine’s requirements.
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 suffi-
cient for typical boat applications. Intake
valve and combustion chamber deposits
may accumulate in boat engines more rapid-
ly than encountered in automotive use. In ad-
dition, 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-
fectiveness. Consult your Yamaha dealer
concerning what may work best for the local-
ly available gasoline and environmental con-
ditions.
EMU41350
Anti-fouling paint
A clean hull is required to maintain your
boat’s performance. Boats moored in the wa-
ter should be protected from marine growth
(barnacles, mussels, and marine plants). If
approved by regulations for your area, the
bottom of the hull can be coated with an anti-
fouling paint to inhibit marine growth.
Anti-fouling paints specifically formulated for
use on aluminum may be applied to the out-
board motor. The original Yamaha paint sur-
face may be scuffed lightly before applying
anti-fouling paint, but do not remove the orig-
inal paint. Removal of the original paint will
increase the rate of corrosion.
NOTICE
ECM02410
Anti-fouling paint for fiberglass and wood
may contain materials, such as copper,
graphite, and tin, that can cause corro-
sion if applied to aluminum boats and
outboard motor components. Never ap-
ply these types of paint to your outboard
motor because rapid corrosion damage
could occur.
Sacrificial anodes are attached to the out-
board motor to provide corrosion protection
6AW-9-18.book 22 ページ ２０１０年３月２２日 月曜日 午前１１時３５分
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2019 Yamaha Motor Corporation, U.S.A.
