2003 YAMAHA YZF-R1 check engine

DESCRIPTION
2-2
2
Right view13. Luggage strap holders (page 3-23)
14. Helmet holders (page 3-18)
15. Main fuse (page 6-36)
16. Electronic fuel injection fuse (page 6-36)
17. Battery (page 6-34)
18. Rear brake fluid reservoir (page 6-28)19. Air filter element (page 6-18)
20. Radiator cap (page 6-15)
21. Coolant reservoir (page 6-13)
22. Engine oil level check window (page 6-9)
23. Engine oil filler cap (page 6-9)
U5PWE1.book Page 2 Monday, July 8, 2002 10:28 AM

INSTRUMENT AND CONTROL FUNCTIONS
3-3
3
EAU04894
Fuel level warning light “”
This warning light comes on when the
fuel level drops below approximately
3.3 L. 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
Yamaha dealer check the motorcycle. _
EAU04895
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
until the malfunction is corrected:
The oil level warning light will flash
ten times, then go off for 2.5 sec-
onds. If this occurs, have a
Yamaha dealer check the motor-
cycle.
_
1. Right turn signal indicator light “”
2. Fuel level warning light “”
3. Oil level warning light “”
4. Neutral indicator light “”
5. Engine trouble warning light “”
6. High beam indicator light “”
7. Left turn signal indicator light “”U5PWE1.book Page 3 Monday, July 8, 2002 10:28 AM

INSTRUMENT AND CONTROL FUNCTIONS
3-4
3
EAU00061
Neutral indicator light “”
This indicator light comes on when the
transmission is in the neutral position.
EAU04896
Engine trouble warning light “”
This warning light comes on or flashes
when an electrical circuit monitoring
the engine is defective. When this oc-
curs, have a Yamaha dealer check the
self-diagnosis system. (See page 3-7
for an explanation of the self-diagnosis
device.)
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 elec-
trical circuit.
EAU00063
High beam indicator light “”
This indicator light comes on when the
high beam of the headlight is switched
on.
EAU04924
Engine speed indicator light
The electrical circuit of the indicator
light can be checked by turning the key
to “ON”.
If the indicator light does not come on
for a few seconds, then go off, have a
Yamaha dealer check the electrical cir-
cuit. (See pages 3-8–3-10 for a de-
tailed explanation of the function of this
indicator light and on how to set it.)
EAU04923
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.
EC000002
CAUTION:_ Do not operate the engine if it is
overheated. _
1. Engine speed indicator light
2. Coolant temperature warning light “”
3. Coolant temperature display
U5PWE1.book Page 4 Monday, July 8, 2002 10:28 AM

INSTRUMENT AND CONTROL FUNCTIONS
3-7
3To reset a tripmeter, select it by push-
ing the “SELECT” button, and then
push the “RESET” button for at least
one second. If you do not reset the fuel
reserve tripmeter manually, it will reset
itself automatically and the display will
return to the prior mode after refueling
and traveling 5 km.
Clock mode
Turn the key to “ON”.
To change the display to the clock
mode, push the “SELECT” button for at
least one second.
To change the display back to the prior
mode, push the “SELECT” button.
To set the clock:
1. Push the “SELECT” button and
“RESET” button together for at
least two seconds.
2. When the hour digits start flashing,
push the “RESET” button to set
the hours.3. Push the “SELECT” button, and
the minute digits will start flashing.
4. Push the “RESET” button to set
the minutes.
5. Push the “SELECT” button and
then release it to start the clock.
Self-diagnosis device
This model is equipped with a self-di-
agnosis device for various electrical cir-
cuits.
If any of those circuits are defective,
the engine trouble warning light will
come on, and then the multi-function
display will indicate a two-digit error
code (e.g., 11, 12, 13).
If the multi-function display indicates
such an error code, note the code num-
ber, and then have a Yamaha dealer
check the motorcycle.
ECA00127
CAUTION:_ If the display indicates an error
code, the motorcycle should be
checked as soon as possible in or-
der to avoid engine damage. _
U5PWE1.book Page 7 Monday, July 8, 2002 10:28 AM

INSTRUMENT AND CONTROL FUNCTIONS
3-16
3
EAU04911
Fuel tank breather hose Before operating the motorcycle:

Check the fuel tank breather hose
connection.


Check the fuel tank breather hose
for cracks or damage, and replace
it if damaged.


Make sure that the end of the fuel
tank breather hose is not blocked,
and clean it if necessary.


Make sure that the end of the fuel
tank breather hose is positioned
outside of the cowling.
EAU01084
Catalytic converter This motorcycle is equipped with a cat-
alytic converter in the exhaust cham-
ber.
EW000128
WARNING
_ The exhaust system is hot after op-
eration. Make sure that the exhaust
system has cooled down before do-
ing any maintenance work. _
EC000114
CAUTION:_ The following precautions must be
observed to prevent a fire hazard or
other damages.

Use only unleaded gasoline.
The use of leaded gasoline will
cause unrepairable damage to
the catalytic converter.


Never park the motorcycle near
possible fire hazards such as
grass or other materials that
easily burn.


Do not allow the engine to idle
too long.
_
1. Fuel tank breather hose
1. Fuel tank breather hose
U5PWE1.book Page 16 Monday, July 8, 2002 10:28 AM

INSTRUMENT AND CONTROL FUNCTIONS
3-24
3
EAU01571
EXUP system This motorcycle is equipped with
Yamaha’s EXUP (EXhaust Ultimate
Power valve) system. This system
boosts engine power by means of a
valve that regulates the diameter of the
exhaust pipe. The EXUP system valve
is constantly adjusted in accordance
with the engine speed by a computer-
controlled servomotor.
EC000027
CAUTION:_

The EXUP system has been set
and extensively tested at the
Yamaha factory. Changing
these settings without sufficient
technical knowledge may result
in poor performance of or dam-
age to the engine.


If the EXUP system does not op-
erate, have a Yamaha dealer
check it.
_
EAU00330
Sidestand The sidestand is located on the left side
of the frame. Raise the sidestand or
lower it with your foot while holding the
motorcycle upright.NOTE:_ The built-in sidestand switch is part of
the ignition circuit cut-off system, which
cuts the ignition in certain situations.
(See further down for an explanation of
the ignition circuit cut-off system.) _
EW000044
WARNING
_ The motorcycle must not be ridden
with the sidestand down, or if the
sidestand cannot be properly
moved up (or does not stay up), oth-
erwise the sidestand could contact
the ground and distract the opera-
tor, resulting in a possible loss of
control. Yamaha’s ignition circuit
cut-off system has been designed to
assist the operator in fulfilling the
responsibility of raising the side-
stand before starting off. Therefore,
check this system regularly as de-
scribed below and have a Yamaha
dealer repair it if it does not function
properly. _
U5PWE1.book Page 24 Monday, July 8, 2002 10:28 AM

INSTRUMENT AND CONTROL FUNCTIONS
3-25
3
EAU03720
Ignition circuit cut-off system The ignition circuit cut-off system (com-
prising the sidestand switch, clutch
switch and neutral switch) has the fol-
lowing functions.

It prevents starting when the trans-
mission is in gear and the side-
stand is up, but the clutch lever is
not pulled.


It prevents starting when the trans-
mission is in gear and the clutch
lever is pulled, but the sidestand is
still down.


It cuts the running engine when
the transmission is in gear and the
sidestand is moved down.
Periodically check the operation of the
ignition circuit cut-off system according
to the following procedure.
EW000045
WARNING
_ If a malfunction is noted, have a
Yamaha dealer check the system
before riding. _U5PWE1.book Page 25 Monday, July 8, 2002 10:28 AM

INSTRUMENT AND CONTROL FUNCTIONS
3-26
3
CD-01E
With the engine turned off:
1. Move the sidestand down.
2. Make sure that the engine stop switch is set to “”.
3. Turn the key to “ON”.
4. Shift the transmission into the neutral position.
5. Push the start switch.
Does the engine start?
The neutral switch may be defective.
The motorcycle should not be ridden until
checked by a Yamaha dealer.
With the engine still running:
6. Move the sidestand up.
7. Keep the clutch lever pulled.
8. Shift the transmission into gear.
9. Move the sidestand down.
Does the engine stall?After the engine has stalled:
10. Move the sidestand up.
11. Keep the clutch lever pulled.
12. Push the start switch.
Does the engine start?
The sidestand switch may be defective.
The motorcycle should not be ridden until
checked by a Yamaha dealer.The clutch switch may be defective.
The motorcycle should not be ridden until
checked by a Yamaha dealer.
NO
NOTE:This check is most reliable if performed with
a warmed-up engine.
YESYES NO
The system is OK.
The motorcycle can be ridden.
YES NO
U5PWE1.book Page 26 Monday, July 8, 2002 10:28 AM