Yamaha R1 2004 ServiceManual

4-4
FRONT WHEEL AND BRAKE DISCSCHAS
NOTE:
CAUTION:
NOTE:
3. Measure:

radial wheel runout 
1

lateral wheel runout 2
Over the specified limits 
 Replace.
Radial wheel runout limit
1.0 mm (0.04 in)
Lateral wheel runout limit
0.5 mm (0.02 in)
4. Check:

wheel bearings
Front wheel turns roughly or is loose 
 Re-
place the wheel bearings.

oil seals
Damage / wear 
 Replace.
5. Replace:

wheel bearings 
New

oil seals 
New
a. Clean the outside of the front wheel hub.
b. Remove the oil seals 
1 with a...

4-5
FRONT WHEEL AND BRAKE DISCSCHAS
NOTE:
EAS00533
CHECKING THE BRAKE DISCS
The following procedure applies to all of the
brake discs.
1. Check:

brake disc
Damage / galling 
 Replace.
2. Measure:

brake disc deflection
Out of specification 
 Correct the brake disc
deflection or replace the brake disc.
Brake disc deflection limit 
(maximum)
Front : 0.1 mm (0.004 in)
Rear : 0.15 mm (0.006 in)
a. Place the motorcycle on a suitable stand so
that the wheel is elevated.
b. Before measuring the front brake...

4-6
FRONT WHEEL AND BRAKE DISCSCHAS
NOTE:
91 Nm (9.1 m
kg, 66 ft
lb)
20 Nm (2.0 m
kg, 14 ft
lb)
CAUTION:
Brake disc bolt
Front : 18 Nm (1.8 m
kg, 13 ft
lb)
Rear : 30 Nm (3.0 m
kg, 22 ft
lb)
LOCTITE

d. Measure the brake disc deflection.
e. If out of specification, repeat the adjustment
steps until the brake disc deflection is within
specification.
f. If the brake disc deflection cannot be brought
within specification, replace the brake disc.
EAS00545
INSTALLING THE FRONT WHEEL
The following procedure...

4-7
FRONT WHEEL AND BRAKE DISCSCHAS
35 Nm (3.5 m
kg, 25 ft
lb)
NOTE:
WARNING
NOTE:
NOTE:
6. Install:

brake caliper (left and right)
Make sure that there is enough space between
the brake pads before installing the brake cali-
pers onto the brake discs.
Make sure the brake hose is routed properly.
EAS00549
ADJUSTING THE FRONT WHEEL STATIC 
BALANCE

After replacing the tire, wheel or both, the front
wheel static balance should be adjusted.

Adjust the front wheel static balance with the
brake discs...

4-8
FRONT WHEEL AND BRAKE DISCSCHAS
NOTE:
3. Adjust:

front wheel static balance
a. Install a balancing weight 
1 onto the rim ex-
actly opposite the heavy spot “X”.
Start with the lightest weight.
b. Turn the front wheel 90 so that the heavy
spot is positioned as shown.
c. If the heavy spot does not stay in that posi-
tion, install a heavier weight.
d. Repeat steps (b) and (c) until the front wheel
is balanced.
4. Check:

front wheel static balance
a. Turn the front wheel and make sure it stays at
each...

4-9
Order Job / Part Q’ty Remarks
1
2
3
4
5
6
7
8
9
10Removing the rear wheel
Rear brake caliper
Lock nut (left and right)
Adjusting bolt (left and right)
Wheel axle nut
Washer
Rear wheel axle
Left adjusting block
Right adjusting block
Rear wheel
Brake caliper bracket1
2
2
1
1
1
1
1
1
1Remove the parts in the order listed.
Place the motorcycle on a suitable stand
so that the rear wheel is elevated.
Loosen.
Loosen.
For installation, reverse the removal 
procedure.
NOTE:
22 Nm (2.2 m
kg, 16 ft
lb)
27 Nm...

4-10
REAR WHEEL AND BRAKE DISCCHAS
Order Job / Part Q’ty Remarks
1
2
3
4
5
6
7
8Removing the rear brake disc and
rear wheel sprocket
Rear brake disc
Rear wheel sprocket
Collar
Oil seal
Bearing
Rear wheel drive hub
Rear wheel drive hub damper
Rear wheel1
1
2
1
1
1
6
1Remove the parts in the order listed.
For installation, reverse the disassembly 
procedure.
100 Nm (10 m
kg, 72 ft
lb)
30 Nm (3.0 m
kg, 22 ft
lb)
EAS00560
REAR BRAKE DISC AND REAR WHEEL SPROCKET 

4-11
REAR WHEEL AND BRAKE DISCCHAS
Order Job / Part Q’ty Remarks
Disassembling the rear wheel
Collar
Bearing
Spacer
Oil seal
Circlip
Bearing1
1
1
1
1
1Disassemble the parts in the order listed.
For assembly, reverse the disassembly
procedure.
1
2
3
4
5
6 

4-12
REAR WHEEL AND BRAKE DISCCHAS
WARNING
NOTE:
NOTE:
NOTE:
EAS00561
REMOVING THE REAR WHEEL
1. Stand the motorcycle on a level surface.
Securely support the motorcycle so that
there is no danger of it falling over.
Place the motorcycle on a suitable stand so that
the rear wheel is elevated.
2. Remove:

brake caliper 
1
Do not depress the brake pedal when removing
the brake caliper.
3. Loosen:

locknut 
1

adjusting bolt 2
4. Remove:

wheel axle nut 
1

wheel axle

rear wheel
Push the rear wheel forward...

4-13
REAR WHEEL AND BRAKE DISCCHAS
EAS00565
CHECKING THE REAR WHEEL
1. Check:

wheel axle

rear wheel

wheel bearings

oil seals
Refer to “CHECKING THE FRONT
WHEEL”.
2. Check:

tire

rear wheel
Damage / wear 
 Replace.
Refer to “CHECKING THE TIRES” and
“CHECKING THE WHEELS” in chapter 3.
3. Measure:

radial wheel runout

lateral wheel runout
Refer to “CHECKING THE FRONT
WHEEL”.
EAS00567
CHECKING THE REAR WHEEL DRIVE HUB
1. Check:

rear wheel drive hub 
1
Cracks / damage 
 Replace.

rear wheel drive hub...