Instrument an
d
control functions
3-4
3
li
g
ht remains on after a
dd
in
g
oil,
stop the en
g
ine an
d
have a Yamaha
d
ealer check the vehicle.
EAU11449
Coolant temperature warnin
g
li
g
ht “
”
This warning light comes on when the
engine is overheating. If this occurs,
stop the engine immediately and allow
the engine to cool. (See page 6-36.)
For vehicles with a radiator fan, the ra-
diator fan(s) automatically switch on or
off according to the coolant tempera-
ture.
TIP
When the vehicle is turned on, the light
will come on for a few seconds, and
then go off. If the light does not come
on, or if the light remains on, have a
Yamaha dealer check the vehicle.
NOTICE
ECA10022
Do not continue to operate the en-
g
ine if it is overheatin
g
.
EAU88330
Malfunction in
d
icator li
g
ht
(MIL) “
”
This light comes on or flashes if a prob-
lem is detected in the engine or other
vehicle control system. If this occurs,
have a Yamaha dealer check the on-
board diagnostic system. The electri-
cal circuit of the warning light can be
checked by vehicle power on. The light
should come on for a few seconds,
and then go off. If the light does not
come on initially when the vehicle pow-
er on, or if the light remains on, have a
Yamaha dealer check the vehicle.
NOTICE
ECA26820
If the MIL starts flashin
g
, re
d
uce en-
g
ine spee
d
to prevent exhaust sys-
tem
d
ama
g
e.
TIP
The engine is sensitively controlled for
the on-board diagnostic system to de-
tect deterioration and malfunction of
the emission control system. Due to
this specification, the MIL may come
on or flash for vehicle modifications,
lack of maintenance, or excessive or
improper use of the motorcycle. To
prevent this, observe these precau-
tions.
Do not attempt to modify the soft-
ware of the engine control unit.
Do not add any electrical acces-
sories that interfere with engine
control.
Do not use aftermarket accesso-
ries or parts such as suspension,
spark plugs, injectors, exhaust
system, etc.
Do not change drivetrain specifi-
cations (chain, sprockets, wheels,
tires, etc.).
Do not remove or alter the O2 sen-
sor, air induction system, or ex-
haust parts (catalysts or EXUP,
etc.).
Maintain proper drive chain.
Maintain correct tire pressure.
Maintain proper brake pedal
height to prevent rear brake from
dragging.
Do not operate the vehicle in an
extreme manner. For example, re-
peated or excessive opening and
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