suspension YAMAHA YZF-R1SC 2004 Service Manual

CHASSIS3-42 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ADJUSTING THE FRONT BRAKE 3-42. . . . . . . . . . . . . . . . . . . . . . . . . . .
ADJUSTING THE REAR BRAKE 3-43. . . . . . . . . . . . . . . . . . . . . . . . . . . .
CHECKING THE BRAKE FLUID LEVEL 3-44. . . . . . . . . . . . . . . . . . . . . .
ADJUSTING THE REAR BRAKE LIGHT SWITCH 3-45. . . . . . . . . . . . .
CHECKING THE FRONT AND REAR BRAKE PADS 3-45. . . . . . . . . . .
CHECKING THE FRONT AND REAR BRAKE HOSES 3-46. . . . . . . . .
BLEEDING THE HYDRAULIC BRAKE SYSTEM 3-47. . . . . . . . . . . . . . .
ADJUSTING THE SHIFT PEDAL 3-48. . . . . . . . . . . . . . . . . . . . . . . . . . . .
ADJUSTING THE DRIVE CHAIN SLACK 3-49. . . . . . . . . . . . . . . . . . . . .
LUBRICATING THE DRIVE CHAIN 3-50. . . . . . . . . . . . . . . . . . . . . . . . . .
CHECKING AND ADJUSTING THE STEERING HEAD 3-51. . . . . . . . .
CHECKING THE FRONT FORK 3-53. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ADJUSTING THE FRONT FORK LEGS 3-54. . . . . . . . . . . . . . . . . . . . . .
ADJUSTING THE REAR SHOCK ABSORBER ASSEMBLY 3-56. . . . .
CHECKING THE TIRES 3-58. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CHECKING THE WHEELS 3-60. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CHECKING AND LUBRICATING THE CABLES 3-61. . . . . . . . . . . . . . .
LUBRICATING THE LEVERS AND PEDALS 3-61. . . . . . . . . . . . . . . . . .
LUBRICATING THE SIDESTAND 3-61. . . . . . . . . . . . . . . . . . . . . . . . . . . .
LUBRICATING THE REAR SUSPENSION 3-61. . . . . . . . . . . . . . . . . . . .
ELECTRICAL SYSTEM3-62 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CHECKING AND CHARGING THE BATTERY 3-62. . . . . . . . . . . . . . . . .
CHECKING THE FUSES 3-67. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
REPLACING THE HEADLIGHT BULBS 3-69. . . . . . . . . . . . . . . . . . . . . .
ADJUSTING THE HEADLIGHT BEAMS 3-70. . . . . . . . . . . . . . . . . . . . . .
CHAPTER 4
CHASSIS
FRONT WHEEL AND BRAKE DISCS4-1 . . . . . . . . . . . . . . . . . . . . . . . . . . .
REMOVING THE FRONT WHEEL 4-3. . . . . . . . . . . . . . . . . . . . . . . . . . .
CHECKING THE FRONT WHEEL 4-3. . . . . . . . . . . . . . . . . . . . . . . . . . . .
CHECKING THE BRAKE DISCS 4-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
INSTALLING THE FRONT WHEEL 4-6. . . . . . . . . . . . . . . . . . . . . . . . . . .
ADJUSTING THE FRONT WHEEL STATIC BALANCE 4-7. . . . . . . . .
REAR WHEEL AND BRAKE DISC4-9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
REAR WHEEL 4-9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
REAR BRAKE DISC AND REAR WHEEL SPROCKET 4-10. . . . . . . . .
REMOVING THE REAR WHEEL 4-12. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CHECKING THE REAR WHEEL 4-13. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CHECKING THE REAR WHEEL DRIVE HUB 4-13. . . . . . . . . . . . . . . . .
CHECKING AND REPLACING THE REAR WHEEL
SPROCKET 4-13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
INSTALLING THE REAR WHEEL 4-14. . . . . . . . . . . . . . . . . . . . . . . . . . . .
ADJUSTING THE REAR WHEEL STATIC BALANCE 4-14. . . . . . . . . . .
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2-13
CHASSIS SPECIFICATIONSSPEC
ItemStandardLimit
Front suspension
Suspension type
Front fork type
Front fork travel
Spring
Free length
Spacer length
Installed length
Spring rate (K1)
Spring stroke (K1)
Inner tube outer diameter
Inner tube bending limit
Optional spring available
Fork oil
Recommended oil
Quantity (each front fork leg)
Level (from the top of the outer
tube, with the outer tube fully
compressed, and without the
fork spring)
Spring preload adjusting positions
Minimum
Standard
Maximum
Rebound damping adjusting
positions
Minimum*
Standard*
Maximum*
Compression damping adjusting
positions
Minimum*
Standard*
Maximum*
*from the fully turned-in position
Telescopic fork
Coil spring / oil damper
120 mm (4.72 in)
236.5 mm (9.31 in)
100 mm (3.937 in)
222.5 mm (8.76 in)
8.83 N / mm (0.90 kg / mm, 50.42 lb / in)
0  120 mm (0  4.7244 in)
43 mm (1.69 in)




No
Suspension oil “01”
0.53 L (0.47 Imp qt, 0.56 US qt)
76 mm (2.99 in)
8
4.5
1
26
10
1
25
10
1











231.8 mm
(9.13 in)




















0.2 mm
(0.01 in)




















































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2-14
CHASSIS SPECIFICATIONSSPEC
ItemStandardLimit
Steering
Steering bearing type
Angular bearing



Lock to lock angle (left)
Lock to lock angle (right)27
27







Rear suspension
Suspension type
Rear shock absorber assembly
type
Rear shock absorber assembly
travel
Spring
Free length
Installed length
Spring rate (K1)
Spring stroke (K1)
Optional spring available
Standard spring preload gas / air
pressure
Spring preload adjusting positions
Minimum
Standard
Maximum
Rebound damping adjusting
positions
Minimum*
Standard*
Maximum*
Compression damping adjusting
positions
Minimum*
Standard*
Maximum*
*from the fully turned-in position
Swingarm (link suspension)
Coil spring / gas-oil damper
65 mm (2.56 in)
173.5 mm (6.83 in)
163.5 mm (6.44 in)
83.4 N / mm (8.50 kg / mm, 476.21 lb / in)
0  65 mm (0.00  2.56 in)
No
1,200 kPa (12 kg / cm
2, 12 bar, 171 psi)
1
4
9
20
17
1
20
12
1








































































Swingarm
Free play (at the end of the
swingarm)
Radial
Axial







1.0 mm
(0.04 in)
1.0 mm
(0.04 in)
Drive chain
Model (manufacturer)
Link quantity
Drive chain slack
Maximum ten-link section
50VA8 (DAIDO)
11 6
25  35 mm (0.98  1.38 in)















150.1 mm
(5.91 in)
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3-2
NOTE:
GENERAL MAINTENANCE AND LUBRICATION CHART
CHK
ADJ
NOTE:
INITIALODOMETER READINGS
No.ITEMROUTINE600 mi
(1000 km)
or
1 month4000 mi
(7000 km)
or
6 months8000 mi
(13000 km)
or
12 months12000 mi
(19000 km)
or
18 months16000 mi
(25000 km)
or
24 months20000 mi
(31000 km)
or
30 months
9*Swingarm pivot
bearings
(See page 4-71)
Check bearing assemblies for looseness.
Moderately repack with lithium-soap-based
grease.
Repack.
10Drive chain
(See page 3-49, 50)
Check chain slack/alignment and condition.
Adjust and lubricate chain with a special O-
ring chain lubricant thoroughly.Every 600 mi (800 km) and after washing the motorcycle or riding in the rain
11*Steering bearings
(See page 3-51)
Check bearing assembly for looseness.
Moderately repack with lithium-soap-based
grease every 16000 mi (25000 km) or 24
months.



Repack.

12*Steering damper
(See page 4-60)
Check operation and for oil leakage.





13*Chassis fasteners
(See page 2-23)
Check all chassis fitting and fasteners.
Correct if necessary.





14Brake and clutch
lever pivot shafts
(See page 3-61)
Apply lithium-soap-based grease (all-purpose
grease) lightly.





15Sidestand pivot(See page 3-61)

Check operation.

Apply lithium-soap-based grease (all-pur-
pose grease) lightly.





16*Sidestand switch
(See page 3-61, 8-4)
Check operation and replace if necessary.






17*Front fork
(See page 3-53)
Check operation and for oil leakage.
Replace if necessary.





18*Shock absorber
assembly
(See page 3-56, 4-67)
Check operation and for oil leakage.
Replace if necessary.





19*Rear suspension
link pivots
(See page 4-71)
Check operation.
Correct if necessary.


20Engine oil
(See page 3-26, 28)
Change (warm engine before draining.)






21*Engine oil filter cartridge
(See page 3-28)
Replace.



22*Cooling system

Check hoses for cracks or damage.
Replace if necessary.





22*Cooling system(See page 3-37, 38, 39)
Change with ethylene glycol antifreeze cool-
ant every 24 months.Change.
23*EXUP system
(See page 3-36)
Check operation, cable free play and pulley
position.
Every 12000 mi (19000 km)
24*Control cables
(See page 3-61)
Apply Yamaha chain and cable lube or en-
gine oil SAE 10W-30 thoroughly.






25*Throttle grip housing
and cable
(See page 3-22)
Check operation and free play.
Adjust the throttle cable free play if necessary.
Lubricate the throttle grip housing and cable.





* Since these items require special tools, data and technical skills, have a Yamaha dealer perform the service.
From 24000 mi (37000 km) or 36 months, repeat the maintenance intervals starting from 8000 mi
(13000 km) or 12 months.
Air filter

This model’s air filter is equipped with a disposable oil-coated paper element, which must not be
cleaned with compressed air to avoid damaging it.

The air filter element needs to be replaced more frequently when riding in unusually wet or dusty areas.
Hydraulic brake service

After disassembling the brake master cylinders and calipers, always change the fluid. Regularly
check the brake fluid levels and fill the reservoirs as required.

Every two years replace the internal components of the brake master cylinders and calipers, and
change the brake fluid.

Replace the brake hoses every four years and if cracked or damaged.
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3-54
ADJUSTING THE FRONT FORK LEGS
CHK
ADJ
WARNING
CAUTION:
a
b
CAUTION:
EAS00155
ADJUSTING THE FRONT FORK LEGS
The following procedure applies to both of the
front fork legs.

Always adjust both front fork legs evenly.
Uneven adjustment can result in poor han-
dling and loss of stability.

Securely support the motorcycle so that
there is no danger of it falling over.
Spring preload

Grooves are provided to indicate the ad-
justment position.

Never go beyond the maximum or mini-
mum adjustment positions.
1. Adjust:

spring preload
a. Turn the adjusting bolt
1 in direction a or
b.
Direction
Spring preload is
increased (suspension is
harder).
Direction
Spring preload is
decreased (suspension
is softer).
Adjusting positions
Minimum: 8
Standard: 4.5
Maximum: 1
Rebound damping
Never go beyond the maximum or minimum
adjustment positions.
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3-55
ADJUSTING THE FRONT FORK LEGS
CHK
ADJ
a
b
CAUTION:
a
b
1. Adjust:

rebound damping
a. Turn the adjusting screw
1 in direction a or
b.
Direction
Rebound damping is
increased (suspension is
harder).
Direction
Rebound damping is
decreased (suspension
is softer).
Adjusting positions
Minimum: 26 clicks in direction
b *
Standard: 10 clicks in direction
b *
Maximum: 1 clicks in direction
b *
* with the adjusting screw fully
turned-in direction
a
Compression damping
Never go beyond the maximum or minimum
adjustment positions.
1. Adjust:

compression damping
a. Turn the adjusting screw
1 in direction a or
b.
Direction
Compression damping is
increased (suspension is
harder).
Direction
Compression damping is
decreased (suspension
is softer).
Adjusting positions
Minimum: 25 clicks in direction
b *
Standard: 10 clicks in direction
b *
Maximum: 1 clicks in direction
b *
* with the adjusting screw fully
turned-in direction
a
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3-56
ADJUSTING THE REAR SHOCK ABSORBER ASSEMBLY
CHK
ADJ
WARNING
CAUTION:
a
b
CAUTION:
EAS00158
ADJUSTING THE REAR SHOCK
ABSORBER ASSEMBLY
Securely support the motorcycle so that
there is no danger of it falling over.
Spring preload
Never go beyond the maximum or minimum
adjustment positions.
1. Adjust:

spring preload
a. Adjust the spring preload with the special
wrench and extension bar included in the
owner’s tool kit.
b. Turn the adjusting ring
1 in direction a or
b.
c. Align the desired position on the adjusting
ring with the stopper
2.
Direction
Spring preload is
increased (suspension is
harder).
Direction
Spring preload is
decreased (suspension
is softer).
Adjusting positions
Minimum: 1
Standard: 4
Maximum: 9
Rebound damping
Never go beyond the maximum or minimum
adjustment positions.
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3-57
ADJUSTING THE REAR SHOCK ABSORBER ASSEMBLY
CHK
ADJ
a
b
CAUTION:
a
b
1. Adjust:

rebound damping
a. Turn the adjusting screw
1 in direction a or
b.
Direction
Rebound damping is
increased (suspension is
harder).
Direction
Rebound damping is
decreased (suspension
is softer).
Adjusting positions
Minimum: 20 clicks in direction
b *
Standard: 17 clicks in direction
b *
Maximum: 1 clicks in direction
b *
* with the adjusting screw fully
turned-in direction
a
Compression damping
Never go beyond the maximum or minimum
adjustment positions.
1. Adjust:

compression damping
a. Turn the adjusting screw
1 in direction a or
b.
Direction
Compression damping is
increased (suspension is
harder).
Direction
Compression damping is
decreased (suspension
is softer).
Adjusting positions
Minimum: 20 clicks in direction
b *
Standard: 12 clicks in direction
b *
Maximum: 1 clicks in direction
b *
* with the adjusting screw fully
turned-in direction
a
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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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