2019 YAMAHA MT-09 engine overheat

Instrument and control functions
4-5
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EAU4939G
Indicator lights and warning
lights
EAU11022
Turn signal indicator light “ ”
This indicator light flashes when a turn
signal light is flashing.
EAU11061
Neutral indicator light “ ”
This indicator light comes on when the
transmission is in the neutral position.
EAU11081
High beam indicator light “ ”
This indicator light comes on when the
high beam of the headlight is switched
on.
EAU11259
Oil level warning light “ ”
This warning light comes on when the
engine oil level is low. To prevent en-
gine damage, replenish the engine oil
as soon as possible.
Even if the oil level is sufficient, the
warning light may flicker when riding on
a slope or during sudden acceleration
or deceleration, but this is not a mal-
function. If a problem is detected in the
oil level detection circuit, the oil level
warning light will flash repeatedly. If this
occurs, have a Yamaha dealer check
the vehicle.TIPWhen the vehicle is turned on, this 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 after con-
firming that the oil level is correct (see
page 7-11), have a Yamaha dealer
check the vehicle.
EAU11448
Coolant temperature warning light
“”
This warning light comes on when the
engine is overheating. If this occurs,
stop the engine immediately and allow
the engine to cool.
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. TIP
For vehicles with a radiator fan, the
radiator fan(s) automatically switch
on or off according to the coolant
temperature.

If the engine overheats, see page7-38 for further instructions.
1. ABS warning light “ ”
2. Quick shift indicator light “ ”
3. Traction control system indicator light
“”
4. Left turn signal indicator light “ ”
5. High beam indicator light “ ”
6. Neutral indicator light “ ”
7. Oil level warning light “ ”
8. Coolant temperature warning light “ ”
9. Engine trouble warning light “ ”
10.Right turn signal indicator light “ ”
11.Immobilizer system indicator light “ ”
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910
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ABS
BS2-9-E2.book 5 ページ ２０１８年８月１０日　金曜日　午前９時３６分

Instrument and control functions
4-6
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34
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NOTICE
ECA10022
Do not continue to operate the en-gine if it is overheating.
EAU73172
Engine trouble warning light “ ”
This warning light comes on 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.TIPWhen 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 aYamaha dealer check the vehicle.
EAU69892
ABS warning light “ ”
This warning light comes on when the
vehicle is first turned on, and goes off
after starting riding. If the warning light
comes on while riding, the anti-lock
brake system may not work correctly.
(See page 4-15.)
TIPIf the light does not come at all, or if the
light does not go off after traveling 10
km/h (6 mi/h), have a Yamaha dealercheck the vehicle.
WARNING
EWA16041
If the ABS warning light does not go
off after traveling at a speed of 10
km/h (6 mi/h) or higher, or if the
warning light comes on or flashes
while riding, the brake system re-
verts to conventional braking. If ei-
ther of the above occurs, or if the
warning light does not come on at
all, use extra caution to avoid possi-
ble wheel lock during emergency
braking. Have a Yamaha dealer
check the brake system and electri-cal circuits as soon as possible.
EAU77002
Traction control system indicator
light “ ”
This indicator light flashes when trac-
tion control has engaged. If the traction
control system is turned off, the indica-
tor light will come on. When the vehicle is turned on, the light
will perform a circuit check (come on for
a few seconds and then go off). If the
light does not come on during the circuit
check, or if the light remains on,
Yamaha dealer check the vehicle.
EAU76411
Quick shift indicator light “ ”
When the key is turned to “ON”, the
quick shift system (page 3-3) turns on
and this indicator light comes on.
If a problem is detected in the quick
shift system, this light will turn off and
the quick shift system will be unavail-
able. Have a Yamaha dealer check the
vehicle.
EAU73120
Immobilizer system indicator light
“”
When the key is turned to “OFF” and 30
seconds have passed, the indicator
light will flash steadily to indicate the im-
mobilizer system is enabled. After 24
hours have passed, the indicator light
will stop flashing, however the immobi-
lizer system is still enabled.
The electrical circui
t of the indicator
ABS
BS2-9-E2.book 6 ページ ２０１８年８月１０日　金曜日　午前９時３６分

Operation and important riding points
6-3
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4
567
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NOTICE
ECA23990

Even with the transmission in
the neutral position, do not
coast for long periods of time
with the engine off, and do not
tow the motorcycle for long dis-
tances. The transmission is
properly lubricated only when
the engine is running. Inade-
quate lubrication may damage
the transmission.

Except when upshifting with the
quick shift system, always use
the clutch while changing gears
to avoid damaging the engine,
transmission, and drive train,
which are not designed to with-
stand the shock of forced shift-ing.
EAU16811
Tips for reducing fuel
consumptionFuel consumption depends largely on
your riding style. Consider the following
tips to reduce fuel consumption:
Shift up swiftly, and avoid high en-
gine speeds during acceleration.

Do not rev the engine while shifting
down, and avoid high engine
speeds with no load on the engine.

Turn the engine off instead of let-
ting it idle for an extended length of
time (e.g., in traffic jams, at traffic
lights or at railroad crossings).
EAU16842
Engine break-inThere is never a more important period
in the life of your engine than the period
between 0 and 1600 km (1000 mi). For
this reason, you should read the follow-
ing material carefully.
Since the engine is brand new, do not
put an excessive load on it for the first
1600 km (1000 mi). The various parts in
the engine wear and polish themselves
to the correct operating clearances.
During this period, prolonged full-throt-
tle operation or any condition that might
result in engine overheating must be
avoided.
EAU17094
0–1000 km (0–600 mi)
Avoid prolonged operation above 5600
r/min. NOTICE: After 1000 km (600
mi) of operation, the engine oil must
be changed and the oil filter car-
tridge or element replaced.
[ECA10303]
1000–1600 km (600–1000 mi)
Avoid prolonged operation above 6800
BS2-9-E2.book 3 ページ ２０１８年８月１０日　金曜日　午前９時３６分

Periodic maintenance and adjustment
7-38
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12 Engine overheating
WARNING
EWA10401

Do not remove the radiator cap when the engine and radiator are hot. Scalding hot fluid and steam may be
blown out under pressure, which could cause serious injury. Be sure to wait until the engine has cooled.

After removing the radiator cap retaining bolt, place a thick rag, like a towel, over the radiator cap, and then
slowly rotate the cap counterclockwise to the detent to allow any residual pressure to escape. When the hissingsound has stopped, press down on the cap while turning it counterclockwise, and then remove the cap.
TIPIf coolant is not available, tap water can be temporarily us
ed instead, provided that it is changed to the recommended coolantas soon as possible.
Wait until the
engine has cooled.
Check the coolant level in the
reservoir and radiator.
The coolant level
is OK.The coolant level is low.
Check the cooling system
for leakage.
Have a Yamaha dealer checkand repair the cooling system.Add coolant. (See TIP.)
Start the engine. If the engine overheats again,
have a
Yamaha dealer check
and repair the cooling system.
There is
leakage.
There is
no leakage.
BS2-9-E2.book 38 ページ ２０１８年８月１０日　金曜日　午前９時３６分