Yamaha Fz6n Manual

4-5
FRONT WHEEL AND BRAKE DISCSCHAS
CAUTION:
c. Remove the wheel bearings 3 with a gener-
al bearing puller.
d. Install the new wheel bearings and oil seals
in the reverse order of disassembly.
Do not contact the wheel bearing inner race
1 or balls 2. Contact should be made only
with the outer race 
3.
Use a socket 
4 that matches the diameter of
the wheel bearing outer race and oil seal.
EAS00531
CHECKING THE BRAKE DISCS
The following procedure applies to all of the
brake discs.
1. Check:

brake disc...

4-6
FRONT WHEEL AND BRAKE DISCSCHAS
NOTE:
3. Measure:

brake disc thickness
Measure the brake disc thickness at a few
different locations.
Out of specification 
 Replace.
Brake disc thickness limit
(minimum)
Front: 4.5 mm (0.18 in)
Rear: 4.5 mm (0.18 in)
4. Adjust:

brake disc deflection
a. Remove the brake disc.
b. Rotate the brake disc by one bolt hole.
c. Install the brake disc.
Tighten the brake disc bolts in stages and in a
crisscross pattern.
Brake disc bolt
18 Nm (1.8 m
kg, 13 ft
lb)
LOCTITE

d....

4-7
FRONT WHEEL AND BRAKE DISCSCHAS
NOTE:
72 Nm (7.2 m
kg, 52 ft
lb)
23 Nm (2.3 m
kg, 17 ft
lb)
CAUTION:
40 Nm (4.0 m
kg, 29 ft
lb)
NOTE:
10 Nm (1.0 m
kg, 7.2 ft
lb)
WARNING
NOTE:
NOTE: 3. Insert the wheel axle.
Install the tire and wheel with the mark 
1 point-
ing in the direction of wheel rotation.
4. Lower the front wheel so that it is on the
ground.
5. Tighten:

wheel axle

wheel axle pinch bolt
Before tightening the wheel axle pinch bolt,
push down hard in the handlebar several
times and check if...

4-8
FRONT WHEEL AND BRAKE DISCSCHAS
NOTE:
a. Spin the front wheel.
b. When the front wheel stops, put an “X
1” mark
at the bottom of the wheel.
c. Turn the front wheel 90 so that the “X
1” mark
is positioned as shown.
d. Release the front wheel.
e. When the wheel stops, put an “X
2” mark at
the bottom of the wheel.
f. Repeat steps (d) through (f) several times
until all the marks come to rest at the same
spot.
g. The spot where all the marks come to rest is
the front wheel’s heavy spot “X”.
3. Adjust:...

4-9
REAR WHEEL AND BRAKE DISCCHAS
Order Job / Part Q’ty Remarks
1
2
3
4
5
6
7
8
9
10Removing the rear wheel
Brake caliper
Lock nut (left and right)
Adjusting nut (left and right)
Wheel axle nut
Washer
Rear wheel axle
Washer
Drive chain puller (left and right)
Rear wheel
Rear brake caliper bracket1
2
2
1
1
1
1
2
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:
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
2
2
1
6
1Remove the parts in the order listed.
For installation, reverse the removal 
procedure.
30 Nm (3.0 m
kg, 22 ft
lb)
100 Nm (10 m
kg, 72 ft
lb)
EAS00556
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
3
2
4
5
6
EAS00560 

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 nut 2
4. Remove:

wheel axle nut 
3

wheel axle 4

washer

rear wheel
Push the rear...

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...

4-14
REAR WHEEL AND BRAKE DISCCHAS
NOTE:
120 Nm (12 m
kg, 87 ft
lb)
27 Nm (2.7 m
kg, 20 ft
lb)
22 Nm (2.2 m
kg, 16 ft
lb)
2. Replace:

rear wheel sprocket
a. Remove the self-locking nuts and the rear
wheel sprocket.
b. Clean the rear wheel drive hub with a clean
cloth, especially the surfaces that contact the
sprocket.
c. Install the new rear wheel sprocket.
Rear wheel sprocket self-locking 
nut
100 Nm (10 m
kg, 72 ft
lb)
Tighten the self-locking nuts in stages and in a
crisscross pattern.
EAS00572...