2004 YAMAHA YZF-R1 engine overheat

INSTRUMENT AND CONTROL FUNCTIONS
3-4
3
EAU11060
Neutral indicator light “”
This indicator light comes on when the
transmission is in the neutral position.
EAU11080
High beam indicator light “”
This indicator light comes on when the
high beam of the headlight is switched
on.
EAU11250
Oil level warning light “”
This warning light comes on when the
engine oil level is low.
The electrical circuit of the warning light
can be checked by turning the key to
“ON”.
If the warning light does not come on
for a few seconds, then go off, have a
Yamaha dealer check the electrical cir-
cuit.NOTE:

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 malfunction.


This model is also equipped with a
self-diagnosis device for the oil
level detection circuit. If the oil lev-
el detection circuit is defective, the
following cycle will be repeated un-
til the malfunction is corrected: The
oil level warning light will flash ten
times, then go off for 2.5 seconds.
If this occurs, have a Yamahadealer check the vehicle.
EAU11360
Fuel level warning light “”
This warning light comes on when the
fuel level drops below approximately
3.4 L (0.90 US gal) (0.75 Imp.gal).
When this occurs, refuel as soon as
possible.
The electrical circuit of the warning light
can be checked by turning the key to
“ON”.
If the warning light does not come on
for a few seconds, then go off, have a
Yamaha dealer check the electrical cir-
cuit.
NOTE:This model is also equipped with a self-
diagnosis device for the fuel level de-
tection circuit. If the fuel level detection
circuit is defective, the following cycle
will be repeated until the malfunction is
corrected: The fuel level warning light
will flash eight times, then go off for 2.5
seconds. If this occurs, have a Yamahadealer check the vehicle.
EAU11422
Coolant temperature warning light
“”
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 by turning the key to
“ON”.
If the warning light does not come on
for a few seconds, then go off, have a
Yamaha dealer check the electrical cir-
cuit.
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INSTRUMENT AND CONTROL FUNCTIONS
3-5
3
CAUTION:
ECA10020
Do not operate the engine if it isoverheated.
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INSTRUMENT AND CONTROL FUNCTIONS
3-10
32. Push the “SELECT” button to stop
the stopwatch.
3. Push the “SELECT” button again
to reset the stopwatch.
Split-time measurement
1. Push the “RESET” button to start
the stopwatch.
2. Push the “RESET” button to mea-
sure split-times. (The colon “:” will
start flashing.)
3. Push the “RESET” button to dis-
play the final split-time or push the
“SELECT” button to stop the stop-
watch and display total elapsed
time.
4. Push the “SELECT” button to reset
the stopwatch.
Coolant temperature display
The coolant temperature display indi-
cates the temperature of the coolant.
Push the “RESET” button to switch the
coolant temperature display to the air
intake temperature display.
NOTE:When the coolant temperature display
is selected, “C” is displayed for one
second, and then the coolant tempera-ture is displayed.CAUTION:
ECA10020
Do not operate the engine if it isoverheated.
Air intake temperature display
The air intake temperature display indi-
cates the temperature of the air drawn
into the air filter case. Push the “RE-
SET” button to switch the coolant tem-
perature display to the air intake
temperature display.NOTE:

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


When the air intake temperature
display is selected, “A” is displayedbefore the temperature.
Self-diagnosis devices
This model is equipped with a self-diag-
nosis device for various electrical cir-
cuits.
If any of those circuits are defective, the
engine trouble warning light will come
on, and then the right display will indi-
cate a two-digit error code (e.g., 11, 12,
13).
This model is also equipped with a self-
diagnosis device for the immobilizer
system.
If any of the immobilizer system circuits
are defective, the immobilizer system
indicator light will flash, and then the
right display will indicate a two-digit er-
ror code (e.g., 51, 52, 53).
NOTE:If the right display indicates error code
52, this could be caused by transpon-
der interference. If this error code ap-pears, try the following.
U5VYE0E0.book Page 10 Friday, November 14, 2003 11:47 AM

OPERATION AND IMPORTANT RIDING POINTS
5-3
5
NOTE:
When shifting down two gears at a
time, reduce the speed accordingly
(e.g., down to 35 km/h (22 mi/h) whenshifting from 5th to 3rd gear).
EAU16810
Tips for reducing fuel
consumption 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.
EAU17091
0–1000 km (0–600 mi)
Avoid prolonged operation above 7000
r/min.
1000–1600 km (600–1000 mi)
Avoid prolonged operation above 8000
r/min.
Shift up points:
1st → 2nd: 20 km/h (12 mi/h)
2nd → 3rd: 30 km/h (19 mi/h)
3rd → 4th: 40 km/h (25 mi/h)
4th → 5th: 50 km/h (31 mi/h)
5th → 6th: 60 km/h (37 mi/h)
U5VYE0E0.book Page 3 Friday, November 14, 2003 11:47 AM

PERIODIC MAINTENANCE AND MINOR REPAIR
6-13
6
CAUTION:
ECA10470


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 cool-
ant as soon as possible, other-
wise the engine may not be
sufficiently cooled and the cool-
ing system will not be protected
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 possible,
otherwise the effectiveness ofthe coolant will be reduced.WARNING
EWA10380
Never attempt to remove the radiatorcap when the engine is hot.
4. Install the coolant reservoir cap,
and then install the brake fluid res-
ervoir bracket screw.NOTE:

The radiator fan is automatically
switched on or off according to the
coolant temperature in the radia-
tor.


If the engine overheats, see page6-42 for further instructions.
EAU33030
Changing the coolant
WARNING
EWA10380
Never attempt to remove the radiatorcap when the engine is hot.The coolant must be changed at the in-
tervals specified in the periodic mainte-
nance and lubrication chart. Have a
Yamaha dealer change the coolant.
1. Coolant reservoir capCoolant reservoir capacity (up to the
maximum level mark):
0.25 L (0.26 US qt) (0.22 Imp.qt)
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PERIODIC MAINTENANCE AND MINOR REPAIR
6-43
6 Engine overheating
WARNING
EWA10400


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.
NOTE:If coolant is not available, tap water can be temporarily used 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 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.
U5VYE0E0.book Page 43 Friday, November 14, 2003 11:47 AM