2004 YAMAHA YZF-R1S oil

3-44
A
B
CHECKING THE BRAKE FLUID LEVEL
CHK
ADJ
NOTE:
WARNING
CAUTION:
NOTE:
EAS00115
CHECKING THE BRAKE FLUID LEVEL
1. Stand the motorcycle on a level surface.

Place the motorcycle on a suitable stand.

Make sure the motorcycle is upright.
2. Check:

brake fluid level
Below the minimum level mark
a
Add the
recommended brake fluid to the proper level.
Recommended brake fluid
DOT 4
AFront brake
BRear brake

Use only the designated brake fluid. Other
brake fluids may cause the rubber seals to
deteriorate, causing leakage and poor
brake performance.

Refill with the same type of brake fluid that
is already in the system. Mixing brake
fluids may result in a harmful chemical
reaction, leading to poor brake perfor-
mance.

When refilling, be careful that water does
not enter the brake fluid reservoir. Water
will significantly lower the boiling point of
the brake fluid and could cause vapor lock.
Brake fluid may damage painted surfaces
and plastic parts. Therefore, always clean
up any spilt brake fluid immediately.
In order to ensure a correct reading of the brake
fluid level, make sure the top of the brake fluid
reservoir is horizontal.
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3-50
a
b
ADJUSTING THE DRIVE CHAIN SLACK /
LUBRICATING THE DRIVE CHAINCHK
ADJ
NOTE:
DirectionDrive chain is tightened.
DirectionDrive chain is loosened.
To maintain the proper wheel alignment, adjust
both sides evenly.
d. Tighten both locknuts to specification.
Locknut
16 Nm (1.6 m
kg, 12 ft
lb)
e. Tighten the wheel axle nut to specification.
Wheel axle nut
150 Nm (15 m
kg, 108 ft
lb)
EAS00142
LUBRICATING THE DRIVE CHAIN
The drive chain consists of many interacting
parts. If the drive chain is not maintained proper-
ly, it will wear out quickly. Therefore, the drive
chain should be serviced, especially when the
motorcycle is used in dusty areas.
This motorcycle has a drive chain with small
rubber O-rings between each side plate. Steam
cleaning, high-pressure washing, certain sol-
vents, and the use of a coarse brush can dam-
age these O-rings. Therefore, use only kero-
sene to clean the drive chain. Wipe the drive
chain dry and thoroughly lubricate it with engine
oil or chain lubricant that is suitable for O-ring
chains. Do not use any other lubricants on the
drive chain since they may contain solvents that
could damage the O-rings.
Recommended lubricant
Engine oil or chain lubricant
suitable for O-ring chains
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3-53
CHECKING AND ADJUSTING THE STEERING HEAD /
CHECKING THE FRONT FORKCHK
ADJ
WARNING
Steering head tension
200
500 g
e. Repeat the above procedure on the opposite
handlebar.
f. If the steering head tension is out of specifi-
cation (both handlebars should be within
specification), remove the upper bracket and
loosen or tighten the upper ring nut.
g. Reinstall the upper bracket and measure the
steering head tension again as described
above.
h. Repeat the above procedure until the steer-
ing head tension is within specification.
i. Grasp the bottom of the front fork legs and
gently rock the front fork.
Binding / looseness
Adjust the steering
head.
EAS00150
CHECKING THE FRONT FORK
1. Stand the motorcycle on a level surface.
Securely support the motorcycle so that
there is no danger of it falling over.
2. Check:

inner tube
1
Damage / scratches
Replace.

oil seal
2
Oil leakage
Replace.
3. Hold the motorcycle upright and apply the
front brake.
4. Check:

front fork operation
Push down hard on the handlebars several
times and check if the front fork rebounds
smoothly.
Rough movement
Repair.
Refer to “FRONT FORK” in chapter 4.
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3-58
CHECKING THE TIRES
CHK
ADJ
WARNING
WARNING
EAS00162
CHECKING THE TIRES
The following procedure applies to both of the
tires.
1. Check:

tire pressure
Out of specification
Regulate.

The tire pressure should only be checked
and regulated when the tire temperature
equals the ambient air temperature.

The tire pressure and the suspension must
be adjusted according to the total weight
(including cargo, rider, passenger and ac-
cessories) and the anticipated riding
speed.

Operation of an overloaded motorcycle
could cause tire damage, an accident or an
injury.
NEVER OVERLOAD THE MOTORCYCLE.
Basic
weight
(with oil
and a full
fuel tank)
193 kg (425 lb)
194 kg (428 lb) for CAL
Maximum
load*202 kg (445 lb)
201 kg (443 lb) for CAL
Cold tire
pressureFrontRear
Up to
90 kg
load*250 kPa
(2.5 kgf / cm2,
2.5 bar,
35.6 psi)
290 kPa
(2.9 kgf / cm2,
2.9 bar,
41.3 psi)
90 kg

maximum
load*250 kPa
(2.5 kgf / cm2,
2.5 bar,
35.6 psi)
290 kPa
(2.9 kgf / cm2,
2.9 bar,
41.3 psi)
High-
speed
riding250 kPa
(2.5 kgf / cm2,
2.5 bar,
35.6 psi)
290 kPa
(2.9 kgf / cm2,
2.9 bar,
41.3 psi)
* Total weight of rider, passenger, cargo and ac-
cessories
It is dangerous to ride with a worn-out tire.
When the tire tread reaches the wear limit,
replace the tire immediately.
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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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3-70
REPLACING THE HEADLIGHT BULBS /
ADJUSTING THE HEADLIGHT BEAMSCHK
ADJ
CAUTION:
a
b
a
b
Avoid touching the glass part of the head-
light bulb to keep it free from oil, otherwise
the transparency of the glass, the life of the
bulb and the luminous flux will be adversely
affected. If the headlight bulb gets soiled,
thoroughly clean it with a cloth moistened
with alcohol or lacquer thinner.
5. Install:

headlight bulb holder
6. Install:

headlight bulb cover (high beam)

headlight bulb coupler (low beam)
7. Connect:

headlight coupler (high beam)

headlight cover (low beam)
EAS00185
ADJUSTING THE HEADLIGHT BEAMS
The following procedure applies to both of the
headlights.
1. Remove:

front cowling inner panels
Refer to “COWLINGS”.
2. Adjust:

headlight beam (vertically)
a. Turn the adjusting screw
1 in direction a or
b.
Direction
Headlight beam is raised.
DirectionHeadlight beam is
lowered.
3. Adjust:

headlight beam (horizontally)
a. Turn the adjusting screw
2 in direction a or
b.
Direction
Headlight beam moves to
the left.
DirectionHeadlight beam moves to
the right.
4. Install:

front cowling inner panels
Refer to “COWLINGS”.
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4-2
FRONT WHEEL AND BRAKE DISCSCHAS
Order Job / Part Q’ty Remarks
Disassembling the front wheel
Oil seal (left and right)
Wheel bearing (left and right)
Spacer2
2
1Disassemble the parts in the order listed.
For assembly, reverse the disassembly
procedure.
1
2
3
EAS00518
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