1999 YAMAHA YZF-R7 display

1 - 5
INSTRUMENT AND CONTROL FUNCTIONS
4 681012
14
x1000r/min
0
1 12
3 3
4

1. Warning light
2. Oil level symbol “ ”
3. Coolant temperature symbol “ ”
4. Engine trouble symbol “ ”
EAU01564
Warning light
This indicator light has three functions.
l
The light will come on and symbol
“ ” will flash if the engine oil
level is low.
If this symbol flashes, stop the en-
gine immediately and fill it with oil
to the specified level.
l
The light will come on and symbol
“ ” will flash if trouble occurs in
a monitoring circuit. In such a
case, take the motorcycle to a
Yamaha dealer to have the self-
diagnostic systems checked.
l
The light will come on and symbol
“ ” will flash if the coolant tem-
perature is too high. The following
chart shows the conditions of the
indicator light, symbol and tem-
perature display in accordance to
coolant temperature.
The light circuit can be checked by the
procedure on page 1-6.
EC000118
CAUTION:

l
Do not run the motorcycle until
you know it has sufficient en-
gine oil.
l
Do not run the motorcycle if the
engine is overheated.
NOTE:

Even if the oil is filled to the specified
level, the indicator light may flicker
when riding on a slope or during sud-
den acceleration or deceleration, but
this is normal.
CB-74ECB-74E
Coolant
temperatureDisplay Conditions What to do
~ 39 ˚CSymbol is on and “LO” is
displayed.OK. Go ahead with riding.
40 ˚C ~ 120 ˚CSymbol is on and temper-
ature is displayed.OK. Go ahead with riding.
121 ˚C ~ 139 ˚CSymbol and temperature
flash.
Warning light comes on.Stop the motorcycle and al-
low it to idle until coolant tem-
perature goes down.
If the temperature does not
go down, stop the engine.
140 ˚C ~ Symbol and message
“HI” flash.
Warning light comes on.Stop the engine and allow it
to cool. Seen page 1-19 if the
engine overheats.
—Symbol and message
“Err” flash.
Warning light comes on.Ask a Yamaha dealer to in-
spect the motorcycle.
C
C
C
C
C

1 - 7
INSTRUMENT AND CONTROL FUNCTIONS
EAU01295
Fuel indicator light circuit check
CB-46ECB-69E
Turn the main switch to “ON”.
Indicator does not come
on.
Have a Yamaha dealer
inspect the electric
circuit.Indicator goes off.Indicator does not go off.
Inspect the fuel level.
Indicator comes on.
After a few seconds:
OK. Go ahead with
riding.Fuel level is OK.
Have a Yamaha
dealer inspect the
electric circuit.Fuel level is low.
Supply recommended
fuel.

1. Speedometer
2. Clock, odometer
3. “SELECT” button
4. “RESET” button
EAU01601
Digital speedometer
This speedometer is equipped with:
l
an odometer
l
two trip odometers
l
a fuel reserve trip meter
l
a clock
NOTE:

For UK models only:
To change the speedometer display
from kilometers to miles, press the “SE-
LECT” button for at least two seconds.
Odometer and trip meter modes
Use the trip meters to estimate how far
you can ride on a tank of fuel.
Use the fuel reserve trip meter to see
the distance traveled from when the
fuel level dropped to the reserve level.
Selecting a mode
Push the “SELECT” button to change
between the odometer mode “ODO”
and the trip odometer modes “TRIP 1”
and “TRIP 2” in the following order:
“ODO”
®
“TRIP 1”
®
“TRIP 2”
®
“ODO”
If the fuel level indicator light comes on
the odometer display will automatically
change to the fuel reserve trip meter
mode “TRIP F” and start counting the
distance traveled from that point. Push
the “SELECT” button to change be-
tween the fuel odometer, trip odometer
and odometer modes in the following
order:
“TRIP F”
®
“TRIP 1”
®
“TRIP 2”
®
“ODO”
®
“TRIP F”Resetting a meter
To reset a trip odometer to 0.0, select it
by pushing the “SELECT” button and
push the “RESET” button for at least
one second.
To reset the fuel reserve trip meter, se-
lect it by pushing the “SELECT” button
and push the “RESET” button for at
least one second. The display will re-
turn to “TRIP 1”. If you do not reset the
fuel reserve trip meter manually, it will
automatically reset and return to “TRIP
1” after refueling and the motorcycle
has traveled 5 km (3.1 miles).
NOTE:

After the fuel reserve trip meter is reset,
the display always returns to the “TRIP
1” mode. If “TRIP 2” was being used
before the fuel reserve trip meter is re-
set, be sure to push the “SELECT” but-
ton to change back to the “TRIP 2”
mode.

1 - 8
INSTRUMENT AND CONTROL FUNCTIONS
1. Clock, odometer
2. “SELECT” button
3. “RESET” button
Clock mode
To change the display to the clock
mode, push both the “SELECT” and
“RESET” buttons.
To change the display back to the
odometer mode, push the “RESET”
button.
To set the clock
1. Push both the “SELECT” and
“RESET” buttons for at least two
seconds.2. When the hour digits start flash-
ing, push the “RESET” button to
set the hours.
3. Push the “SELECT” button to
change the minutes.
4. When the minute digits start flash-
ing, push the “RESET” button to
set the minutes.
5. Push the “SELECT” button to start
the clock.
NOTE:

After setting the clock, be sure to push
the “SELECT” button before turning the
main switch to “OFF”, otherwise the
clock will not be set.
4 681012
14
x1000r/min
0
1 1

1. Tachometer
EAU00101
Tachometer
This model is equipped with an electric
tachometer so the rider can monitor the
engine speed and keep it within the
ideal power range.
EC000003
CAUTION:

Do not operate at 13,800 r/min and
above.
Diagnosis device
This model is equipped with a self diag-
nosis.
Refer to “ELECTRICAL CONTROL
SYSTEM USER MODE” in chapter 8.
If some trouble should occur in an elec-
trical circuit the tachometer will repeat-
edly display change in r/min.If this occurs take your motorcycle to a
Yamaha dealer for repair.
EC000004
CAUTION:

To prevent engine damage, be sure
to consult a Yamaha dealer as soon
as possible if the tachometer dis-
plays a repeated change in rpm.

8 - 29
–+ELECELECTRONIC FUEL INJECTION SYSTEM
1Main switch
5Battery
6Main fuse
CCamshaft sensor
DThrottle position sensor
EIntake air pressure sensor
FAtmospheric pressure sensor
GIntake air temperature sensor
HCoolant temperature sensor
IPickup coil
JECU
KCylinder #1-injector 1
LCylinder #2-injector 1
MCylinder #3-injector 1
NCylinder #4-injector 1
OCylinder #1-injector 2
PCylinder #2-injector 2
QCylinder #3-injector 2
RCylinder #4-injector 2
XFall detection switch
YSpeed sensor
yFuel pump
zMain relay
}Engine stop switch
ŒElectronic fuel injection system fuse
£ECU fuse
TROUBLESHOOTING
NOTE:
• Before troubleshooting, remove the following part(-s):
1) bottom cowling
2) front cowling
• Troubleshoot with the following special tool(-s).
The condition code is displayed by the tachometer.
Check the condition code list to
identify the faulty part. Refer to
“ELECTRICAL CONTROL SYS-
TEM”.
In diagnosis mode, select the
appropriate diagnosis code to
check the operation of the faulty
part.Check the
wiring.Replace.
Co, diagnosis switch box
90890-03171
Test coupler adapter
90890-03149
Out of specifi-
cationNo good

8 - 30
–+ELECELECTRICAL CONTROL SYSTEM
ELECTRICAL CONTROL SYSTEM
The YZF-R7 features an electrical control system with the following modes:
• user mode
• diagnosis mode
• CO emission adjustment mode
NOTE:
The vehicle is normally in user mode. Special tools are needed to switch to a diagnosis mode
or to the CO emission adjustment mode.
USER MODE
• If a circuit is defective, setting the main switch to “ON” (without starting the engine) will
cause the corresponding condition code to be displayed by the tachometer, the warning
light to light up, and the engine trouble symbol to blink. When the engine is started, the
condition code is no longer displayed and the engine speed appears.
• Normally, when the main switch is set to “ON”, the warning light comes on for 1.4 seconds
and then goes off. The warning light also comes on while the start switch is pushed.
• When the engine is not running, the warning light flashes once every 0.16 second if the start
switch is pushed under the following conditions.
• The fall detection switch switches off the main relay.
• Ignition is cut off by the sidestand switch.
• The injector operating voltage decreases to 3 V or less, or the main relay malfunctions.
• The pickup coil is defective.
• The fall detection switch is defective.

8 - 31
–+ELECELECTRICAL CONTROL SYSTEM
Tachometer display sequence (engine not running)
110,000 r/min for 2.0 seconds
2First condition code (13 = intake air pressure sensor)
3Second condition code (42 = speed sensor)
41st digit of condition code for 1.0 second
510,000 r/min for 0.5 second
62nd digit of condition code for 1.0 second
510Time
(seconds) 5
0 10 Revolution
(´10
3r/min)
46
5
1246
511 3Repeat
Main switch is turnd on

8 - 32
–+ELECELECTRICAL CONTROL SYSTEM
Condition code list
NOTE:
* This condition code is also displayed in the following cases:
- when the starter switch is held down for more than 4 seconds, causing the warning
light to flash
- when the ignition circuit cut-off system stops the engine or prevents it from starting
** This condition code is also displayed when the engine is operated at 5,000 r/min for at
least 30 seconds with the rear wheel at standstill.
*** This condition code is also displayed when the engine stop switch is turned to “ ”
while riding with the transmission in gear. Condition
codeCircuit Defect(s) System response
11 Camshaft sensor • No incoming sig-
nalThe ECU pairs the ignition of cyl-
inders #1 and #4 and cylinders #2
and #3. The motorcycle can be
ridden.
12* Pickup coil • No incoming sig-
nalThe motorcycle cannot be ridden.
13 Intake air pressure
sensor• Disconnected
• Short-circuitThe ECU stays set to an intake air
pressure of 760 mm Hg (29.9 in Hg).
The motorcycle can be ridden.
14 Intake air pressure
sensor hose and
negative pressure
hose• Improper connec-
tion
• Bending
15 Throttle position
sensor• Disconnected
• Short-circuitThe ECU stays set to a wide throt-
tle opening.
The motorcycle can be ridden.
16 Throttle position
sensor• Locked
21 Coolant tempera-
ture sensor• Disconnected
• Short-circuitThe ECU stays set to a coolant
temperature of 80˚C (176˚F).
The motorcycle can be ridden.
22 Intake air tempera-
ture sensor• Disconnected
• Short-circuitThe ECU stays set to an intake air
temperature of 40˚C (104˚F).
The motorcycle can be ridden.
23 Atmospheric pres-
sure sensor• Disconnected
• Short-circuitThe ECU stays set to an atmo-
spheric pressure of 760 mm Hg
(29.9 in Hg).
The motorcycle can be ridden.
41 Fall detection
switch• Disconnected The main relay stays switched off.
The motorcycle cannot be ridden.
42** Speed sensor • Incorrect signal The ECU stays set to 6th gear.
The motorcycle can be ridden.
43*** Monitored voltage • Incorrect The ECU stays set to a monitored
voltage of 12 V.
The motorcycle can be ridden.
44 ROM operation • CO emission
adjustment errorThe CO emission adjustment is
set to 0.

8 - 36
–+ELECELECTRICAL CONTROL SYSTEM
Diagnosis code list
Diagnosis
codeInspected item System responseTachometer display
(0 ~ 10,000 r/min)
00 — — —
01 Voltage The tachometer displays the volt-
age ´ 500.
Example:
If the voltage is 12.5 V, the tachome-
ter displays 12.5 ´ 500 = 6,250 r/min.0 r/min (0 V) –
10,000 r/min (20 V)
02 Atmospheric
pressureThe tachometer displays the atmo-
spheric pressure sensor signal.
Example:
If the atmospheric pressure is 760
mm Hg (29.9 in Hg), the tachometer
displays 8,000 r/min.
03 Intake air pres-
sureThe tachometer displays the differ-
ence between the minimum intake
air pressure sensor signal and the
atmospheric pressure sensor signal
after the main switch is turned to
“ON” in the diagnosis mode.0 r/min (0 mm Hg)
– 1,000 r/min
(100 mm Hg)
04 Throttle position
sensorThe tachometer displays the throttle
position sensor signal.1,300 r/min (0.68 V) –
5,900 r/min (2.93 V)
05 Throttle position
sensorThe tachometer displays the mini-
mum throttle position sensor signal.5,500 r/min (0.68 V) –
10,000 r/min (1.25 V)
06 Intake air temper-
atureThe tachometer displays the intake
air temperature signal.4,800 r/min (20˚C) –
5,700 r/min (30˚C)
07 Coolant tempera-
tureThe tachometer displays the coolant
temperature sensor signal.4,900 r/min (20˚C) –
9,200 r/min (100˚C)
08 Speed sensor The tachometer displays the speed
sensor signal when the rear wheel is
rotated by hand.0 –
09 Fall detection
switchThe tachometer displays whether
the fall detection switch is on or
whether it is off or disconnected.0 r/min (on), 8,000 r/
min (off) or 10,000 r/
min (disconnected)
10 Sidestand switch The tachometer displays whether
the sidestand switch is on or off.
The tachometer displays 0 r/min
when the sidestand is down (switch
on) and 10,000 r/min when the side-
stand is up (switch off).0 r/min (on) or
10,000 r/min (off)
11 — — —