battery YAMAHA YZF-R7 1999 Owners Manual

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INSTRUMENT AND CONTROL FUNCTIONS
INSTRUMENT AND CONTROL FUNCTIONS
EAU00029
Main switch/Steering lock
The main switch controls the ignition
and lighting systems. Its operation is
described below.
EAU00036
ON
Electrical circuits are switched on. The
engine can be started. The key cannot
be removed in this position.
EAU00038
OFF
All electrical circuits are switched off.
The key can be removed in this posi-
tion.
EAU00040
LOCK
The steering is locked in this position
and all electrical circuits are switched
off. The key can be removed in this po-
sition. To lock the steering, turn the
handlebars all the way to the left. While
pushing the key into the main switch,
turn it from “OFF” to “LOCK” and re-
move it. To release the lock, turn the
key to “OFF” while pushing.
1. Push
2. Turn
EW000016
WARNING

Never turn the key to “OFF” or
“LOCK” when the motorcycle is
moving. The electrical circuits will
be switched off which may result in
loss of control or an accident. Be
sure the motorcycle is stopped be-
fore turning the key to “OFF” or
“LOCK”.
EAU01574
(Parking)
The steering is locked in this posi-
tion, and the taillights and auxiliary
lights come on, but all other circuits
are off. The key can be removed in
this position.
To use the parking position, first
lock the steering, then turn the key
to “ ”. Do not use this position for
an extended length of time as the
battery may discharge.
1.
Neutral indicator light “ ”
2. High beam indicator light “ ”
3. Turn indicator light “ ”
4. Fuel indicator light “ ”
EAU00056
Indicator lights
EAU00061
Neutral indicator light “ ”
This indicator comes on when the
transmission is in neutral.
EAU00063
High beam indicator light “ ”
This indicator comes on when the
headlight high beam is used.
EAU00057
Turn indicator light “ ”
This indicator flashes when the turn
switch is moved to the left or right.
EAU01154
Fuel indicator light “ ”
When the fuel level drops below
approximately 4.8 L, this light will
come on. When this light comes
on, fill the tank at the first opportuni-
ty. This light circuit can be checked
by the procedure on page 1-7.
If there is a shortcircuit or disconti-
nuity at the thermistor, the fuel indi-
cator light will flash 8 times and
then stay off for 3 seconds repeat-
edly.

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MOTORCYCLE CARE AND STORAGE/
CONSUMER INFORMATION
WARNING
When using the starter motor to
crank the engine, remove the spark
plug wires, and ground them to pre-
vent sparking.
4. Remove the drive chain. Thor-
oughly clean the chain with kero-
sene and lubricate it. Reinstall the
chain or store it in a plastic bag
(tied to frame for safekeeping).
5. Lubricate all control cables.
6. Block up the frame to raise both
wheels off the ground.
7. Tie a plastic bag over the exhaust
pipe outlet to prevent moisture
from entering.
8. If strong in a humid or salt-air at-
mosphere, coat all exposed metal
surfaces with a light film of oil. Do
not apply oil to any rubber parts or
the seat cover.9. Remove the battery and charge it.
Store it in a dry place and re-
change it once a month. Do not
store the battery in an excessively
warm or cold place (less than 0°C
(30°F) or more than 30°C (90°F)).
NOTE:
Make any necessary repairs before
storing the motorcycle.
CONSUMER INFORMATION
EAU01040
Identification numbers record
Record the key identification number,
vehicle identification number and mod-
el label information in the spaces pro-
vided for assistance when ordering
spare parts from a Yamaha dealer or
for reference in case the vehicle is sto-
len.
1. KEY IDENTIFICATION
NUMBER:
2. VEHICLE IDENTIFICATION
NUMBER:
3. MODEL LABEL INFORMATION:
1. Key identification numberEAU01041
Key identification number
The key identification number is
stamped on the key tag. Record this
number in the space provided and use
it for reference when obtaining a new
key.
1. Vehicle identification numberEAU01043
Vehicle identification number
The vehicle identification number is
stamped into the steering head pipe.
Record this number in the space pro-
vided.
NOTE:
The vehicle identification number is
used to identify your motorcycle and
may be used to register your motorcy-
cle with the licensing authority in your
state.

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CONSUMER INFORMATION/
TROUBLESHOOTING CHART
1. Model labelEAU01049
Model label
The model label is affixed to the loca-
tion shown in the figure. Record the in-
formation on this label in the space
provided. This information will be need-
ed to order spare parts from your
Yamaha dealer.
1 1
TROUBLESHOOTING
TROUBLESHOOTING CHARTEW000125
WARNING
Never check the fuel system while smoking or in the vicinity of an open flame.
Check if there is fuel
in the fuel tank.
1. FuelEnough fuel.
No fuel.Go to compression check.
Supply fuel.
Use electric starter.
2. CompressionThere is compression.
No compression.Go to ignition check.
Ask a Yamaha dealer to
inspect.
Remove spark
plugs and
check electrodes.
3. IgnitionWet.
Dry.Wipe clean with dry cloth and correct
spark gap or replace spark plugs.
Ask a Yamaha dealer to inspect.
Engine doesn’t start, go to battery
check.
Open throttle half-way and start
the engine.
Use electric starter.
4. BatteryEngine turns over
quickly.
Engine turns over
slowly.Battery good.
Check connections or
recharge.
Engine doesn’t start, ask a Yamaha
dealer to inspect.
Engine doesn’t start, go to compression check.

ELECTRICAL SPECIFICATIONSSPEC
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ELECTRICAL SPECIFICATIONS
Item Standard Limit
System voltage12 V ----
Ignition system
Ignition system type C.D.I. ----
Ignition timing 5˚ BTDC at 1,100 r/min ----
Advanced timing 55˚ BTDC at 5,000 r/min ----
Advancer type Throttle position sensor and electrical ----
Pickup coil resistance/color 421 ~ 569 W / Gy–B ----
C.D.I. unit model (manufacturer) F8T19371 (MITSUBISHI) ----
Ignition coils
Model (manufacturer) F6T549 (MITSUBISHI) ----
Minimum ignition spark gap 6 mm (0.24 in) ----
Primary coil resistance 0.16 ~ 0.21 W ----
Secondary coil resistance 5.0 ~ 6.8 kW ----
Throttle position sensor standard
resistance4 ~ 6 kW----
Charging system
System type AC magneto ----
Model (manufacturer) F4T254 (MITSUBISHI) ----
Nominal output 14 V / 22.5 A at 5,000 r/min ----
Stator coil resistance 0.38 ~ 0.46 W at 20˚C (68˚F) ----
Rectifier/regulator
Regulator type Semiconductor-short circuit ----
Model SH650D-11 (SHINDENGEN) ----
No-load regulated voltage 14.1 ~ 14.9 V ----
Capacity 18 A ----
Withstand voltage 200 V ----
Battery
Battery type GT9B-4 ----
Battery voltage/capacity 12V / 8AH ----
Headlight typeHalogen bulb
Indicator light type ´ quantityLED ´ 5
Bulbs (voltage/wattage ´ quantity)
Headlight R. 12 V 60 W ´ 1 / L. 12 V 51 W ´ 1 ----
Auxiliary light 12 V 5 W ´ 2 ----
Tail/brake light 12 V 5 W / 21 W ´ 1 ----
Front turn signal light 12 V 21 W ´ 2 ----
Rear turn signal light 12 V 21 W ´ 2 ----
Meter light 12 V 1.4 W ´ 2 ----

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SPEC
1Ignition coil
2Throttle position sensor coupler
3Camshaft sensor
4Injector 1 coupler
5Starter motor
6Fuel tank overflow hose
7Fuel pump coupler
8Rectifier/regurator
9Battery
0Turn signal relayAECU
BFuse box
CFall detection switch
DStarter relay
EMain relay
FThrottle stop screw cable
GFuel tank breather hose
HAir filter case breather hose
IIntake air temperature sensor coupler
JInjector 2 sub-lead
CABLE ROUTING

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CHK
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EB305020
ELECTRICAL SYSTEM
CHECKING AND CHARGING THE BATTERY
WARNINGWARNING
Batteries generate explosive hydrogen
gas and contain electrolyte which is
made of poisonous and highly caustic
sulfuric acid.
Therefore, always follow these preven-
tive measures:
• Wear protective eye gear when han-
dling or working near batteries.
• Charge batteries in a well-ventilated
area.
• Keep batteries away from fire, sparks
or open flames (e.g., welding equip-
ment, lighted cigarettes).
• DO NOT SMOKE when charging or
handling batteries.
• KEEP BATTERIES AND ELECTROLYTE
OUT OF REACH OF CHILDREN.
• Avoid bodily contact with electrolyte
as it can cause severe burns or perma-
nent eye injury.
FIRST AID IN CASE OF BODILY CON-
TACT:
EXTERNAL
• Skin – Wash with water.
• Eyes – Flush with water for 15 minutes
and get immediate medical attention.
INTERNAL
• Drink large quantities of water or milk
followed with milk of magnesia,
beaten egg or vegetable oil. Get
immediate medical attention.
ACHTUNG:CAUTION:
• This is a sealed battery. Never remove
the sealing caps because the balance
between cells will not be maintained
and battery performance will deterio-
rate.
• Charging time, charging amperage
and charging voltage for an MF bat-
tery are different from those of con-
ventional batteries. The MF battery
should be charged as explained in the
charging method illustrations. If the
battery is overcharged, the electrolyte
level will drop considerably. There-
fore, take special care when charging
the battery.
CHECKING AND CHARGING THE BATTERY

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CHK
ADJ
CHECKING AND CHARGING THE BATTERY
NOTE:
Since MF batteries are sealed, it is not
possible to check the charge state of the
battery by measuring the specific gravity
of the electrolyte. Therefore, the charge of
the battery has to be checked by measur-
ing the voltage at the battery terminals.
1. Remove:
• rear cowling
Refer to “COWLINGS”.
• rear cowling bracket 1
• battery band 2
2. Disconnect:
• battery leads
(from the battery terminals)
ACHTUNG:CAUTION:
First, disconnect the negative lead 3,
then the positive lead 4.
3. Remove:
• battery
4
4
3
3

1
1

2
2

4. Measure:
• battery charge
t t t t t t t t t t t t t t t t t t t t t t t t t t t
a. Connect a digital voltmeter to the bat-
tery terminals.
NOTE:
• The charge state of an MF battery can
be checked by measuring its open-cir-
cuit voltage (i.e., the voltage when the
positive terminal is disconnected).
• No charging is necessary when the
open-circuit voltage equals or exceeds
12.8 V.
b. Check the charge of the battery, as
shown in the charts and the following
example.
Example
Open-circuit voltage = 12.0 V
Charging time = 6.5 hours
Charge of the battery = 20 ~ 30%
s s s s s s s s s s s s s s s s s s s s s s s s s s s
Tester positive probe ® battery posi-
tive terminal
Tester negative probe ® battery
negative terminal
(68 ˚F)

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CHK
ADJ
5. Charge:
• battery
(refer to the appropriate charging
method illustration)
WARNINGWARNING
Do not quick charge a battery.
ACHTUNG:CAUTION:
• Never remove the MF battery sealing
caps.
• Do not use a high-rate battery charger
since it forces a high-amperage cur-
rent into the battery quickly and can
cause battery overheating and bat-
tery plate damage.
• If it is impossible to regulate the
charging current on the battery
charger, be careful not to overcharge
the battery.
• When charging a battery, be sure to
remove it from the motorcycle. (If
charging has to be done with the bat-
tery mounted on the motorcycle, dis-
connect the negative lead from the
battery terminal.)
• To reduce the chance of sparks, do not
plug in the battery charger until the
battery charger leads are connected to
the battery.
• Before removing the battery charger
lead clips from the battery terminals,
be sure to turn off the battery charger.
• Make sure that the battery charger
lead clips are in full contact with the
battery terminal and that they are not
shorted. A corroded battery charger
lead clip may generate heat in the con-
tact area and a weak clip spring may
cause sparks.
• If the battery becomes hot to the
touch at any time during the charging
process, disconnect the battery
charger and let the battery cool before
reconnecting it. Hot batteries can
explode!
• As shown in the following illustration,
the open-circuit voltage of an MF bat-
tery stabilizes about 30 minutes after
charging has been completed. There-
fore, wait 30 minutes after charging is
completed before measuring the
open-circuit voltage.
(68 ˚F)
(68 ˚F)
CHECKING AND CHARGING THE BATTERY

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CHECKING AND CHARGING THE BATTERY
Charging method using a variable-voltage charger

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CHK
ADJ
CHECKING AND CHARGING THE BATTERY
Charging method using a constant-voltage charger