Yamaha Fz6 N Service Manual

							
FRONT WHEEL
4-8
* FZ6-NAHG/FZ6-SAHG
Removing the front wheel sensor and sensor rotor (FZ6-NA/FZ6-NAHG/FZ6-SA/FZ6-SAHG)
Order Job/Parts to remove Q’ty Remarks1 Brake hose holder 2
2 Brake hose holder 1
3 Front brake caliper  2
4 Front wheel sensor 1
5 Front wheel axle pinch bolt 1 Loosen.
6 Front wheel axle 1
7 Collar 1
8 Sensor housing 1
9 Front wheel 1
10 Front brake disc 2
11 Clamp 1 For installation, reverse the removal proce-
dure. 
						

							
FRONT WHEEL
4-9
Disassembling the front wheel
Order Job/Parts to remove Q’ty Remarks1 Oil seal 2
2 Wheel bearing 2
3Spacer 1 For assembly, reverse the disassembly pro-
cedure. 
						

							
FRONT WHEEL
4-10
EAS21900
REMOVING THE FRONT WHEEL
1. Stand the vehicle on a level surface.
WARNING
EWA13120
Securely support the vehicle so that there 
is no danger of it falling over.
NOTE:
Place the vehicle on a suitable stand so that 
the front wheel is elevated.
2. Remove: Left brake caliper
 Right brake caliper
NOTE:
Do not apply the brake lever when removing 
the brake calipers.
3. Loosen: Front wheel pinch bolt
 Front wheel axle
4. Elevate:
 Front wheel
NOTE:
Place the vehicle on a suitable stand so that 
the front wheel is elevated.
5. Remove: Front wheel axle
 Front wheel
6. Remove: Collars
EAS21920
CHECKING THE FRONT WHEEL
1. Check: Wheel axle
Roll the wheel axle on a flat surface.
Bends  → Replace.
WARNING
EWA13460
Do not attempt to straighten a bent wheel 
axle.
2. Check:
Tire
 Front wheel Damage/wear  → Replace.
Refer to CHECKING THE TIRES on page 
3-31 and CHECKING THE WHEELS on 
page 3-34.
3. Measure:  Radial wheel runout “1”
 Lateral wheel runout “2” Over the specified limits  → Replace. 4. Check:
 Wheel bearings
Front wheel turns roughly or is loose  → 
Replace the wheel bearings.
 Oil seals
Damage/wear  → Replace.
5. Replace:  Wheel bearings 
 Oil seals 
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a. Clean the outside of the front wheel hub.
b. Remove the oil seals “1” with a flat-head  screwdriver.
NOTE:
To prevent damaging the wheel, place a rag “2” 
between the screwdriver and the wheel sur-
face.
Radial wheel runout limit1.0 mm (0.04 in)
Lateral wheel runout limit 0.5 mm (0.02 in)
New
New 
						

							
FRONT WHEEL
4-11
c. Remove the wheel bearings “3” with a gen-eral bearing puller.
d. Install the new wheel bearings and oil seals  in the reverse order of disassembly.
CAUTION:
ECA14130
Do not contact the wheel bearing inner race 
“4” or balls “5”. Contact should be made 
only with the outer race “6”.
NOTE:
Use a socket “7” that matches the diameter of 
the wheel bearing outer race and oil seal.
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EAS22010
[D-3] MAINTENANCE OF THE FRONT 
WHEEL SENSOR AND SENSOR ROTOR
 ABS wheel speed sens or and sensor rotor
CAUTION:
ECA14450
 Handle the ABS components with care 
since they have been accurately adjusted.  Keep them away from dirt and do not sub-
ject them to shocks.
 The ABS wheel sensor cannot be disas- sembled. Do not attempt to disassemble 
it. If faulty, replace with a new one.
Removing the front wheel sensor
1.  Remove:  Brake hose holder “1”
 Front wheel sensor lead holder “2”
 Brake caliper “3”
 Front wheel sensor “4”
CAUTION:
ECA4S81011
 Be sure not to contact the sensor elec-trode to any metal part when removing 
the front wheel sensor from the sensor 
housing.
 Do not operate the brake lever when 
removing the brake caliper.
Checking the front wheel sensor and sen-
sor rotor
1. Check:  Front wheel sensor “1”
Cracks/bends/distortion  → Replace.
Iron powder/dust  → Clean.
A. FZ6-NA/FZ6-SA
B. FZ6-NAHG/FZ6-SAHG 
						

							
FRONT WHEEL
4-12
2. Check: Front wheel sensor rotor “2” Cracks/damage  → Replace the front wheel 
assembly.
NOTE:
The wheel sensor rotor of the vehicle is 
inserted under pressure by a special process 
and cannot be replaced as a single unit. To 
replace the sensor rotor, replace the wheel 
assembly.
Installing the front wheel sensor
1. Install:
 Front wheel
NOTE:
Align the slot in the sensor housing with the 
projection of the front fork before assembly.
CAUTION:
ECA14470
Make sure there are no foreign materials in 
the wheel hub. Foreign materials cause 
damage to the inner sensor rotor and wheel 
sensor. 2. Install:
 Front wheel sensor “1”
 Front wheel sensor lead holder “2”
 Brake caliper “3”
 Brake hose holder “4”
NOTE:
When installing the front wheel sensor, check 
the wheel sensor lead fo r twists and the sensor 
electrode for foreign materials.
CAUTION:
ECA14480
To route the front wheel sensor lead, refer 
to CABLE ROUTING on page 2-47.
Front wheel sensor bolt
7 Nm (0.7 m·kg, 5.1 ft·lb)
Front brake caliper bolt40 Nm (4.0 m·kg, 29 ft·lb) 
						

							
FRONT WHEEL
4-13
3. Check: Front wheel sensor installation Check if the wheel sensor housing is 
installed properly.
Refer to [D-3] MAINTENANCE OF THE 
FRONT WHEEL SENSOR AND SENSOR 
ROTOR on page 4-11.
EAS21970
ADJUSTING THE FRONT WHEEL STATIC 
BALANCE
NOTE:
 After replacing the tire, wheel or both, the front wheel static balance should be 
adjusted.
 Adjust the front wheel static balance with the 
brake disc installed.
1. Remove:  Balancing weight(s)
2. Find:  Front wheel’s heavy spot
NOTE:
Place the front wheel on a suitable balancing 
stand.
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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”.
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3. Adjust: Front wheel static balance
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a. Install a balancing weight “1” onto the rim  exactly opposite the heavy spot “X”.
NOTE:
Start with the lightest weight.
b. Turn the front wheel 90 ° so that the heavy 
spot is positioned as shown.
A. FZ6-NA/FZ6-SA
B. FZ6-NAHG/FZ6-SAHG 
						

							
FRONT WHEEL
4-14
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.
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4. Check: Front wheel static balance
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a. Turn the front wheel and make sure it stays  at each position shown.
b. If the front wheel does not remain station- ary at all of the positions, rebalance it.
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EAS22000
INSTALLING THE FRONT WHEEL
The following procedure applies to both of the 
brake discs.
1. Lubricate: Wheel axle
 Oil seal lips
2. Install: Collar
 Wheel axle
NOTE:
Install the tire and wheel with the mark “1” 
pointing in the direction of wheel rotation.
3. Tighten: Wheel axle  Wheel axle pinch bolt
CAUTION:
ECA14140
Before tightening the wheel axle nut, push 
down hard on the handlebar(s) several 
times and check if the front fork rebounds 
smoothly.
4. Install:
 Brake calipers
WARNING
EWA13490
Make sure the brake cable is routed prop-
erly.
Recommended lubricant Lithium-soap-based grease
Wheel axle nut72 Nm (7.2 m·kg, 52 ft·lb)
Wheel axle pinch bolt19 Nm (1.9 m·kg, 14 ft·lb)
Front brake caliper bolt40 Nm (4.0 m·kg, 29 ft·lb) 
						

							
REAR WHEEL
4-15
EAS22030
REAR WHEEL
Removing the rear wheel (FZ6-N/FZ6-NHG(W)/FZ6-S/FZ6-SHG(W))
Order Job/Parts to remove Q’ty Remarks
1 Rear brake caliper 1
2 Locknut 2 Loosen.
3 Adjusting nut 2 Loosen.
4 Rear wheel axle nut 1
5 Washer 1
6 Rear wheel axle 1
7 Washer 1
8 Drive chain puller 2
9 Rear wheel 1
10 Rear brake caliper bracket 1
For installation, reverse the removal proce-
dure. 
						

							
REAR WHEEL
4-16
Removing the rear wheel sensor and sensor rotor (FZ6-NA/FZ6-NAHG/FZ6-SA/FZ6-SAHG)
Order Job/Parts to remove Q’ty Remarks
1 Rear wheel sensor 1
2 Rear brake caliper 1
3 Lock nut 2 Loosen.
4 Adjusting nut 2 Loosen.
5 Wheel axle nut 1
6 Washer 1
7 Rear wheel axle 1
8 Washer 1
9 Drive chain puller 2
10 Rear wheel 1
11 Rear brake caliper bracket 1
12 Sensor rotor 1 For installation, reverse the removal proce-
dure. 
						

							
REAR WHEEL
4-17
Removing the rear brake disc and rear wheel sprocket
Order Job/Parts to remove Q’ty Remarks1 Rear brake disc 1
2 Rear wheel sprocket 1
3 Collar 2
4 Oil seal 2
5 Bearing 2
6 Rear wheel drive hub 1
7 Rear wheel drive hub damper 6
8 Rear wheel 1 For installation, reverse the removal proce-
dure.