engine overheat YAMAHA MAJESTY 125 2007 Owners Manual

EAU10980
Indicator lights
1. Alarm indicator light
2. Left turn signal indicator light “c”
3. High beam indicator light “j”
4. Coolant temperature warning light “y”
5. Right turn signal indicator light “d”
EAU11030
Turn signal indicator lights “c” and
“
d”
The corresponding indicator light flas-
hes when the turn signal switch is
pushed to the left or right.
EAU11080
High beam indicator light “j”
This indicator light comes on when
the high beam of the headlight is swit-
ched on.
EAUM1070
Oil change indicator
At the initial 500 km (300 mi) and
every 3000 km (1800 mi) thereafter,
the message “CHnGE OIL” appears
in the odometer/clock display to indi-
cate that the engine oil should be
changed. (See page 6-9.)
EAUM1080
Coolant temperature warning light
“
y”
This warning light comes on when the
engine overheats. When this occurs,
stop the engine immediately and
allow the engine to cool.
The electrical circuit of the warning
light can be checked according to the
following procedure.
1. Turn the key to “h”.
2. If the warning light does not
come on, have a Yamaha dealer
check the electrical circuit.
ECA10020
CAUTION:
Do not operate the engine if it is
overheated.
EAUS1361
Speedometer unit
1. "TRIP" button
2. Multi-function display
3. Speedometer
4. Red zone
The speedometer unit is equipped
with the following:
a speedometer (which shows the
riding speed)
ECAS0010
CAUTION:
Do not operate the scooter in the
speedometer red zone.Red zone:
120 km/h (75 mph) and above
an odometer (which shows the
total distance traveled)
a tripmeter (which shows the dis-
tance traveled since it was last
set to zero)
12 3
y
4
y
12345
3
INSTRUMENT AND CONTROL FUNCTIONS
3-2
5D8-F8199-E0.qxd 1/6/07 16:20 Página 16

1. Coolant reservoir cap
2. Maximum level mark
3. Minimum level mark
3. If the coolant is at or below the
minimum level mark, remove
panel A (See page 6-6.), remove
the reservoir cap, add coolant to
the maximum level mark, and
then install the reservoir cap and
the panel.
ECA10470
CAUTION:
If coolant is not available, use
distilled water or soft tap water
instead. Do not use hard water
or salt water since it is harmful
to the engine.
If water has been used instead
of coolant, replace it with coo-
lant as soon as possible, other-
wise the engine may not be
sufficiently cooled and the coo-
ling system will not be protec-
ted against frost and corrosion.
If water has been added to the
coolant, have a Yamaha dealer
check the antifreeze content of
the coolant as soon as possi-
ble, otherwise the effective-
ness of the coolant will be
reduced.
EWA10380
s s
WARNING
Never attempt to remove the radia-
tor cap when the engine is hot.
NOTE:
The radiator fan is automatically
switched on or off according to
the coolant temperature in the
radiator.
If the engine overheats, see page
6-33 for further instructions.
EAU33030
Changing the coolantEWA10380
s s
WARNING
Never attempt to remove the radia-
tor cap when the engine is hot.
The coolant must be changed at the
intervals specified in the periodic
maintenance and lubrication chart.
Have a Yamaha dealer change the
coolant.
Coolant reservoir capacity (up to
the maximum level mark):
0.30 L (0.32 US qt) (0.26 Imp.qt)
12
3
6
PERIODIC MAINTENANCE AND MINOR REPAIR
6-13
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6
PERIODIC MAINTENANCE AND MINOR REPAIR
6-33
Engine overheatingEWA10400
s s
WARNING
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 his-
sing sound has stopped, press down on the cap while turning it counterclockwise, and then remove the cap.
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 NOTE.)
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.
NOTE:
If coolant is not available, tap water can be temporarily used instead, provided that it is changed to the recommended
coolant as soon as possible.
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