Instrument an
d
control functions
5-21
5
g
asoline spills on your skin, wash
with soap an
d
water. If
g
asoline
spills on your clothin
g
, chan
g
e your
clothes.
EAU86110
Your Yamaha engine was designed to
use premium unleaded gasoline. Con-
firm the pump octane number [(R+M)/2
method] is 91 or higher, or the research
octane number (RON) is 95 or higher. If
engine knocking or pinging occurs, use
a gasoline of a different brand or higher
octane rating.
Gasohol
There are two types of gasohol: gaso-
hol containing ethanol and that con-
taining methanol. Gasohol containing
ethanol can be used if the ethanol con-
tent does not exceed 10% (E10). Gas-
ohol containing methanol is not
recommended by Yamaha because it
can cause damage to the fuel system
or vehicle performance problems.
NOTICE
ECA11401
Use only unlea
d
e
d
g
asoline. The use
of lea
d
e
d
g
asoline will cause severe
d
ama
g
e to internal en
g
ine parts,
such as the valves an
d
piston rin
g
s,
as well as to the exhaust system.
EAU86260
Fuel tank
b
reather hose an
d
overflow hose
For U49 mo
d
els
Recommen
d
e
d
fuel:
Unleaded gasoline (E10 acceptable)
Octane num
b
er (R+M)/2:
91 or higher
Fuel tank capacity:
14 L (3.7 US gal, 3.1 Imp.gal)
Fuel reserve amount:
2.8 L (0.74 US gal, 0.62 Imp.gal)
1. Fuel tank breather hose
2. Fuel tank overflow hose
3. White mark
4. Clamp
2
2
2
1
1
4
3
3
3
UB7N10E0.book Page 21 Wednesday, October 14, 2020 10:14 AM
