2004 YAMAHA YZF-R1S Service Manual

3-60
CHECKING THE TIRES / CHECKING THE WHEELS
CHK
ADJ
WARNING
NOTE:
WARNING
NOTE: Front tire
Manufacturer
SizeModel
DUNLOP120 / 70ZR 17
M / C (58W)D218FL
MICHELIN120 / 70ZR 17
M / C (58W)Pilot
POWER C
Rear tire
Manufacturer
SizeModel
DUNLOP190 / 50ZR 17
M / C (73W)D218L
MICHELIN190 / 50ZR 17
M / C (73W)Pilot
POWER G
New tires have a relatively low grip on the
road surface until they have been slightly
worn. Therefore, approximately 100 km
should be traveled at normal speed before
any high-speed riding is done.
For tires with a direction of rotation mark
1:

Install the tire with the mark pointing in the
direction of wheel rotation.

Align the mark
2 with the valve installation
point.
EAS00168
CHECKING THE WHEELS
The following procedure applies to both of the
wheels.
1. Check:

wheel
Damage / out-of-round
Replace.
Never attempt to make any repairs to the
wheel.
After a tire or wheel has been changed or re-
placed, always balance the wheel.
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3-61
CHECKING AND LUBRICATING THE CABLES /
LUBRICATING THE LEVERS AND PEDALS /
LUBRICATING THE SIDESTAND / LUBRICATING THE REAR SUSPENSIONCHK
ADJ
WARNING
NOTE:
EAS00170
CHECKING AND LUBRICATING THE
CABLES
The following procedure applies to all of the in-
ner and outer cables.
Damaged outer cable may cause the cable to
corrode and interfere with its movement. Re-
place damaged outer cable and inner cables
as soon as possible.
1. Check:

outer cable
Damage
Replace.
2. Check:

cable operation
Rough movement
Lubricate.
Recommended lubricant
Engine oil or a suitable cable
lubricant
Hold the cable end upright and pour a few drops
of lubricant into the cable sheath or use a suit-
able lubricating device.
EAS00171
LUBRICATING THE LEVERS AND PEDALS
Lubricate the pivoting point and metal-to-metal
moving parts of the levers and pedals.
Recommended lubricant
Lithium-soap-based grease
EAS00172
LUBRICATING THE SIDESTAND
Lubricate the pivoting point and metal-to-metal
moving parts of the sidestand.
Recommended lubricant
Lithium-soap-based grease
EAS00174
LUBRICATING THE REAR SUSPENSION
Lubricate the pivoting point and metal-to-metal
moving parts of the rear suspension.
Recommended lubricant
Molybdenum-disulfide grease
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3-62
CHECKING AND CHARGING THE BATTERY
CHK
ADJ
WARNING
CAUTION:
EAS00178
ELECTRICAL SYSTEM
CHECKING AND CHARGING THE BATTERY
Batteries generate explosive hydrogen gas
and contain electrolyte which is made of poi-
sonous and highly caustic sulfuric acid.
Therefore, always follow these preventive
measures:

Wear protective eye gear when handling or
working near batteries.

Charge batteries in a well-ventilated area.

Keep batteries away from fire, sparks or
open flames (e.g., welding equipment,
lighted cigarettes).

DO NOT SMOKE when charging or han-
dling batteries.

KEEP BATTERIES AND ELECTROLYTE
OUT OF REACH OF CHILDREN.

Avoid bodily contact with electrolyte as it
can cause severe burns or permanent eye
injury.
FIRST AID IN CASE OF BODILY CONTACT:
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 fol-
lowed with milk of magnesia, beaten egg or
vegetable oil. Get immediate medical atten-
tion.

This is a sealed battery. Never remove the
sealing caps because the balance between
cells will not be maintained and battery per-
formance will deteriorate.

Charging time, charging amperage and
charging voltage for an MF battery are dif-
ferent from those of conventional batter-
ies. The MF battery should be charged as
explained in the charging method illustra-
tions. If the battery is overcharged, the
electrolyte level will drop considerably.
Therefore, take special care when charging
the battery.
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3-63
Relationship between the open-circuit voltage
and the charging time at 20C
Open-circuit voltage (V)
These values vary with the temperature, the condition of
the battery plates, and the electrolyte level. 13.0
12.5
12.0
11.5
5 6.5 10
Charging time (hours)
Ambient
temperature
20C
Open-circuit voltage (V)
Charging condition of the battery (%)
CHECKING AND CHARGING THE BATTERY
CHK
ADJ
NOTE:
CAUTION:
NOTE:
Since MF batteries are sealed, it is not possible
to check the charge state of the battery by mea-
suring the specific gravity of the electrolyte.
Therefore, the charge of the battery has to be
checked by measuring the voltage at the battery
terminals.
1. Remove:

rider seat
Refer to “SEATS”.
2. Disconnect:

battery leads
(from the battery terminals)
First, disconnect the negative battery lead
1, and then the positive battery lead 2.
3. Remove:

battery
4. Check:

battery charge
a. Connect a pocket tester to the battery termi-
nals.
Pocket tester
90890-03112, YU-3112
Positive tester probe

positive battery terminal
Negative tester probe

negative battery terminal

The charge state of an MF battery can be
checked by measuring its open-circuit voltage
(i.e., the voltage when the positive battery ter-
minal is disconnected).

No charging is necessary when the open-cir-
cuit voltage equals or exceeds 12.8 V.
b. Check the charge of the battery, as shown in
the charts and the following example.
Example
c. Open-circuit voltage = 12.0 V
d. Charging time = 6.5 hours
e. Charge of the battery = 20
30%
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3-64
Charging
Ambient temperature 20C
Open-circuit voltage (V)
Check the open-circuit
voltage.Time (minutes)
CHECKING AND CHARGING THE BATTERY
CHK
ADJ
WARNING
CAUTION:
5. Charge:

battery
(refer to the appropriate charging method il-
lustration)
Do not quick charge a battery.

Never remove the MF battery sealing caps.

Do not use a high-rate battery charger
since it forces a high-amperage current
into the battery quickly and can cause bat-
tery overheating and battery 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 battery mounted on the
motorcycle, disconnect the negative bat-
tery 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 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 contact area and a weak clip spring
may cause sparks.

If the battery becomes hot to the touch at
any time during the charging process, dis-
connect the battery charger and let the bat-
tery cool before reconnecting it. Hot batter-
ies can explode!

As shown in the following illustration, the
open-circuit voltage of an MF battery stabi-
lizes about 30 minutes after charging has
been completed. Therefore, wait 30 min-
utes after charging is completed before
measuring the open-circuit voltage.
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3-65
CHECKING AND CHARGING THE BATTERY
CHK
ADJ
Measure the open-circuit
voltage prior to charging.
Connect a charged and
AMP meter to the battery
and start charging.
Make sure that the current
is higher than the standard
charging current written on
the battery.
By turning the charging
voltage adjust dial, set the
charging voltage at 20
24 V.
Adjust the voltage so that the
current is at the standard
charging level.Monitor the amperage for
3
5 minutes to check if the
standard charging current is
reached.
Set the time according to the
charging time suitable for the
open-circuit voltage.
Refer to “Battery condition
checking steps”.If the current does not
exceed the standard
charging current after 5
minutes, replace the battery.
If charging requires more than 5 hours, it is advisable to check the
charging current after a lapse of 5 hours. If there is any change in the
amperage, readjust the voltage to obtain the standard charging
current.
Measure the battery open-circuit voltage after leaving the battery
unused for more than 30 minutes.
12.8 V or more --- Charging is complete.
12.7 V or less --- Recharging is required.
Under 12.0 V --- Replace the battery.YES NO
YES
NONOTE:
Voltage should be measured 30
minutes after the machine is stopped.
NOTE:
Set the charging voltage at 16
17 V.
(If the setting is lower, charging will be
insufficient. If too high, the battery will
be over-charged.)
Charging method using a variable-current (voltage) charger
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3-66
CHECKING AND CHARGING THE BATTERY
CHK
ADJ
Measure the open-circuit
voltage prior to charging.
Connect a charger and
AMP meter to the battery
and start charging.
Make sure that the current
is higher than the standard
charging current written on
the battery.
Charge the battery until the battery’s
charging voltage is 15 V.This type of battery charger cannot
charge the MF battery. A variable
voltage charger is recommended.
Measure the battery open-circuit
voltage after leaving the battery
unused for more than 30 minutes.
12.8 V or more --- Charging is
complete.
12.7 V or less --- Recharging is
required.
Under 12.0 V --- Replace the battery.
Set the charging time at 20 hours
(maximum).
YES NO
NOTE:
Voltage should be measured 30
minutes after the machine is stopped.
NOTE:
Charging method using a constant voltage charger
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3-67
CHECKING AND CHARGING THE BATTERY /
CHECKING THE FUSESCHK
ADJ
CAUTION:
CAUTION:
NOTE: 6. Install:

battery
7. Connect:

battery leads
(to the battery terminals)
First, connect the positive battery lead
1,
and then the negative battery lead
2.
8. Check:

battery terminals
Dirt
Clean with a wire brush.
Loose connection
Connect properly.
9. Lubricate:

battery terminals
Recommended lubricant
Dielectric grease
10. Install:

rider seat
Refer to “SEATS”.
EAS00181
CHECKING THE FUSES
The following procedure applies to all of the
fuses.
To avoid a short circuit, always set the main
switch to “OFF” when checking or replacing
a fuse.
1. Remove:

front cowling inner panel (left)
Refer to “COWLINGS”.

rider seat
Refer to “SEATS”.
2. Check:

fuse
a. Connect the pocket tester to the fuse and
check the continuity.
Set the pocket tester selector to “Ω  1”.
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