engine overheat YAMAHA MT-07 2020 Owners Manual

Instrument and control functions
3-4
3
EAU11061
Neutral in dicator li ght “ ”
This indicator light comes on when the
transmission is in the neutral position.
EAU11081
Hi gh beam in dicator li ght “ ”
This indicator light comes on when the
high beam of the headlight is switched
on.
EAU59962
Oil pressure warnin g lig ht “ ”
This warning light comes on if the en-
gine oil pressure is low.
The electrical circuit of the warning
light can be checked by turning the key
to “ON”. The warning light should
come on again after going off briefly,
and then remain on until the engine is
started.
If the warning light does not come on
initially when the key is turned to “ON”,
have a Yamaha dealer check the elec-
trical circuit.NOTICE
ECA21210
If the warnin g li ght comes on when
the en gine is runnin g, stop the en-
g ine immed iately and check oil level. If the oil level is
below the minimum
level, a dd sufficient oil of the recom-
men ded type to raise it up to the cor-
rect level. If the oil pressure warnin g
li g ht remains on even if the oil level
is correct, imme diately turn the en-
g ine off an d have a Yamaha dealer
check the vehicle.
TIPIf the warning light does not go off after
starting the engine, check the engine
oil level and add oil if necessary. (See
page 6-10.)
If the warning light remains on after
adding engine oil, have a Yamaha
dealer check the vehicle.
EAU11448
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. 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 page
6-39 for further instructions.NOTICE
ECA10022
Do not continue to operate the en-
gine if it is overheatin g.
EAU73172
En gine trou ble warnin g li ght “ ”
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.
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Operation and important rid ing points
5-4
5
EAU16842
En gine 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 fol-
lowing 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 5000
r/min. NOTICE: After 1000 km (600
mi) of operation, the en gine oil must
b e chan ged an d the oil filter car-
tri dg e or element replace d.
[ECA10303]
1000–1600 km (600–1000 mi)
Avoid prolonged operation above 6000
r/min. 1600 km (1000 mi) an
d b eyon d
The vehicle can now be operated nor-
mally.
NOTICE
ECA10311
 Keep the en gine spee d out of
the tachometer re d zone.
 If any en gine trou ble shoul d oc-
cur during the en gine break-in
period , imme diately have a
Yamaha dealer check the vehi-
cle.
EAU17214
Parkin gWhen parking, stop the engine, and
then remove the key from the main
switch.
WARNING
EWA10312
Since the en gine an d exhaust
system can become very hot,
park in a place where pe destri-
ans or chil dren are not likely to
touch them an d b e burne d.
 Do not park on a slope or on soft
groun d, otherwise the vehicle
may overturn, increasin g the
risk of a fuel leak an d fire.
 Do not park near grass or other
flammab le materials which
mi ght catch fire.
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Periodic maintenance an d a djustment
6-39
6
En
gine overheatin g
WARNING
EWA10401
Do not remove the ra diator cap when the en gine an d ra diator are hot. Scal din g hot flui d an d steam may be
b lown out un der pressure, which coul d cause serious injury. Be sure to wait until the en gine has coole d.
 After removin g the ra diator cap retainin g b olt, place a thick ra g, like a towel, over the ra diator cap, an d then
slowly rotate the cap counterclockwise to the detent to allow any resi dual pressure to escape. When the hiss-
in g soun d has stoppe d, press down on the cap while turnin g it counterclockwise, an d then remove the cap.TIPIf coolant is not available, tap water can be temporarily used instead, provided that it is changed to the recommended cool-
ant as 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.
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