Yamaha F175 Manuel De L'utilisateur page 26

Specifications and requirements
line, such as a gasoline that is advertised as
Top Tier Detergent Gasoline. (North America
only) NOTICE: Failure to comply with these
recommendations may also result in un-
scheduled maintenance, fuel system dam-
age, and internal engine damage.
For North America
Recommended fuel:
F175A Regular unleaded gasoline
F200B Mid-grade unleaded gasoline
F200FET1 Mid-grade unleaded gaso-
line
FL200FET1 Mid-grade unleaded gas-
oline
LF200B Mid-grade unleaded gasoline
Min. pump octane number (PON):
F175A 86
F200B 89
F200FET1 89
FL200FET1 89
LF200B 89
For Oceania
Recommended fuel:
F175A Regular unleaded gasoline
F200B Premium unleaded gasoline
LF200B Premium unleaded gasoline
Min. research octane number (RON):
F175A 90
F200B 94
LF200B 94
ECM01982
NOTICE
 Do not use leaded gasoline. Leaded
gasoline can seriously damage the en-
gine.
 Avoid getting water and contaminants in
the fuel tank. Contaminated fuel can
cause poor performance or engine dam-
age. Use only fresh gasoline that has
been stored in clean containers.
20
Gasoline with Ethanol
Two types of gasoline are commonly avail-
able in the U.S.A., Canada, Australia and
New Zealand for use in automobiles and
boats: conventional gasoline without Ethanol
and gasoline with Ethanol, which is typically
[ECM04480]
referred to as E10 gasoline. According to fed-
eral regulations, E10 gasoline may contain up
to 10% Ethanol.
A high quality gasoline without Ethanol is the
preferred fuel for your Yamaha outboard mo-
tor. However, if gasoline with Ethanol is the
only fuel available in your area, your Yamaha
outboard motor is calibrated to run properly
on fresh E10 gasoline that meets the mini-
mum octane requirement specified for this
model.
ECM02402
NOTICE
Never use a gasoline for your outboard
motor that contains more than 10% Etha-
nol, such as E15 which contains 15% Eth-
anol or E85 which contains 85% Ethanol,
or gasoline containing any amount of
Methanol. These fuels can cause starting
and running problems, as well as serious
fuel system and internal engine damage.
Gasoline containing ethanol has several
properties that may cause boat fuel system
problems.
 Ethanol is a strong solvent (cleaning agent)
that can clean gum and varnish deposits
from a boat's fuel system, particularly in
older boats, as well as tanks and pipes
used in gasoline distribution. These re-
leased deposits contaminate the fuel and
can cause problems, such as clogged fuel
filters, carburetors, or fuel injectors, which
could result in engine damage.