engine overheat YAMAHA YZF600 2000 Owners Manual

INSTRUMENT AND CONTROL FUNCTIONS
3-8
3
EAU01652
Coolant temperature gaugeThis gauge indicates the coolant tem-
perature when the main switch is on.
The engine operating temperature will
vary with changes in weather and en-
gine load. If the needle points to the red
zone or higher, stop your motorcycle
and let the engine cool. (See page 6-41
for details.)
EC000002
CAUTION:@ When the engine is overheated, do
not continue riding. @
EAU00118
Handlebar switches
EAU00120
Pass switch “PASS”
Press the switch to operate the passing
light.
EAU00121
Dimmer switch
Turn the switch to “ ” for the high
beam and to “ ” for the low beam.
EAU00127
Turn signal switch
To signal a right-hand turn, push the
switch to “ ”. To signal a left-hand
turn, push the switch to “ ”. Once the
switch is released it will return to the
center position. To cancel the signal,
push the switch in after it has returned
to the center position.
EAU00129
Horn switch “ ”
Press the switch to sound the horn.
1. Coolant temperature gauge
2. Red zone
1. Pass switch “PASS”
2. Dimmer switch
3. Turn signal switch
4. Horn switch “ ”
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PERIODIC MAINTENANCE AND MINOR REPAIR
6-12
6
EAU03024
Cooling system1. Remove the seat. (See page 3-14
for seat removal and installation
procedures.)
2. Check the coolant level in the res-
ervoir tank when the engine is cold
as the coolant level will vary with
engine temperature. The coolant
level should be between the maxi-
mum and minimum marks.
3. If the level is low, add coolant or
distilled water to raise it to the
specified level.
4. Install the seat.
ECA00041
CAUTION:@ Hard water or salt water is harmful
to the engine. You may use soft wa-
ter if you can’t get distilled water. @NOTE:@ l
If water is added, have a Yamaha
dealer check the antifreeze con-
tent of the coolant as soon as pos-
sible.
l
The radiator fan operation is com-
pletely automatic. It is switched on
or off according to the coolant tem-
perature in the radiator.
@5. If your motorcycle overheats, see
page 6-41 for details.
1. Maximum level mark
2. Minimum level mark
Coolant reservoir capacity:
0.55 L
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PERIODIC MAINTENANCE AND MINOR REPAIR
6-41
6
Engine overheating
EW000070
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. Open the radiator cap as follows. Wait until the engine has
cooled. Remove the radiator cap stopper by removing the screw. Place a thick rag like a towel over the radiator cap
and slowly rotate the cap counterclockwise to the detent. This procedure allows any residual pressure to escape.
When the hissing sound has stopped, press down on the cap while turning counterclockwise and remove it. @NOTE:@ If it is difficult to get the recommended coolant, tap water can be temporarily used, provided that it is changed to the recom-
mended coolant as soon as possible. @
Wait until the
engine has cooled.
Check the coolant level in the
reservoir tank and/or radiator.
Level is OK.Level is low, check the
cooling system for leakage.
No
leakage.Leakage.
Ask a Yamaha dealer to inspect
and repair the cooling system.Add coolant. (See NOTE.)
Restart the engine. If the engine overheats again, ask a
Yamaha dealer to inspect and repair the cooling system.
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