engine overheat YAMAHA YZF-R6 2011 Owners Manual

INSTRUMENT AND CONTROL FUNCTIONS
3-5
3
TIPThis model is also equipped with a self-
diagnosis device for the fuel level de-
tection circuit. If a problem is detected
in the fuel level detection circuit, the fol-
lowing cycle will be repeated until the
malfunction is corrected: The fuel level
warning light will flash eight times, and
then go off for 3.0 seconds. If this oc-
curs, have a Yamaha dealer check the
vehicle.
EAU11428
Coolant temperature warning
light“”
This warning light comes on if the en-
gine overheats. If this occurs, stop the
engine immediately and allow the en-
gine to cool.
The electrical circuit of the warning light
can be checked by turning the key to
“ON”. The warning light should come
on for a few seconds, and then go off.
If the warning light does not come on
initially when the key is turned to “ON”,
or if the warning light remains on, have
a Yamaha dealer check the electrical
circuit.
NOTICE
ECA10021
Do not continue to operate the en-
gine if it is overheating.TIP

For radiator-fan-equipped vehi-
cles, the radiator fan(s) automati-
cally switch on or off according to
the coolant temperature in the ra-
diator.


If the engine overheats, see page
6-45 for further instructions.
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INSTRUMENT AND CONTROL FUNCTIONS
3-10
3 Standard measurement
1. Push the “RESET” button to start
the stopwatch.
2. Push the “SELECT” button to stop
the stopwatch.
3. Push the “SELECT” button again
to reset the stopwatch.
Split-time measurement1. Push the “RESET” button to start
the stopwatch.
2. Push the “RESET” button or start
switch“” to measure split-times.
(The colon “:” will start flashing.)
3. Push the “RESET” button or start
switch“” to display the final split-
time or push the “SELECT” button
to stop the stopwatch and display
total elapsed time.
4. Push the “SELECT” button to reset
the stopwatch.TIPTo change the display back to the prior
mode, push the “SELECT” button for a
few seconds until the stopwatch digits
flash.
Coolant temperature display
The coolant temperature display indi-
cates the temperature of the coolant.TIPWhen the coolant temperature display
is selected, “C” is displayed for one
second, and then the coolant tempera-
ture is displayed.NOTICE
ECA10021
Do not continue to operate the en-
gine if it is overheating.
Air intake temperature display
The air intake temperature display indi-
cates the temperature of the air drawn
into the air intake duct. Push the “RE-
SET” button to switch the coolant tem-
perature display to the air intake
temperature display.TIP

Even if the air intake temperature
is set to be displayed, the coolant
temperature warning light comes
on if the engine overheats.


When the key is turned to “ON”,
the coolant temperature is auto-
matically displayed, even if the air
intake temperature was displayed
prior to turning the key to “OFF”.
1. Coolant temperature display
TRIP A
˚C
1
1. Air intake temperature display
TRIP A
˚C
1
U13SE3E0.book Page 10 Tuesday, June 8, 2010 4:39 PM

OPERATION AND IMPORTANT RIDING POINTS
5-3
5
EAU16810
Tips for reducing fuel con-
sumption Fuel 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).
EAU16841
Engine break-in There 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.
EAU17083
0–1000 km (0–600 mi)
Avoid prolonged operation above 8300
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.
[ECA10302]
1000–1600 km (600–1000 mi)
Avoid prolonged operation above 9900
r/min.1600 km (1000 mi) and beyond
The vehicle can now be operated nor-
mally.
NOTICE
ECA10310


Keep the engine speed out of
the tachometer red zone.


If any engine trouble should oc-
cur during the engine break-in
period, immediately have a
Yamaha dealer check the vehi-
cle.
TIPDuring and after the engine break-in
period, the exhaust heat may cause
discoloration of the exhaust pipe, but
this is normal.
U13SE3E0.book Page 3 Tuesday, June 8, 2010 4:39 PM

PERIODIC MAINTENANCE AND ADJUSTMENT
6-46
6Engine overheating
WARNING
EWAT1040


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.


Place a thick rag, like a towel, over the radiator cap, and then slowly rotate the cap counterclockwise to the de-
tent to allow any residual pressure to escape. When the hissing sound 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 used instead, provided that it is changed to the recommended coolant
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.
U13SE3E0.book Page 46 Tuesday, June 8, 2010 4:39 PM