Yamaha Fz1n Service Manual

REAR WHEEL
4-16
Disassembling the rear wheel
Order Job/Parts to remove Q’ty Remarks1Coller 1
2 Bearing 1
3 Spacer 1
4 Oil seal 1
5 Circlip 1
6 Bearing 1 For assembly, reverse the disassem-
bly procedure. 

REAR WHEEL
4-17
EAS22040
REMOVING THE REAR WHEEL (DISC)
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 rear wheel is elevated.
2. Remove: Brake caliper “1”
NOTE:
Do not depress the brake pedal when remov-
ing the brake caliper.
3. Loosen: Locknut “1”
 Adjusting bolt “2”
4. Remove:  Wheel axle nut “1”
 Wheel axle “2”
 Rear wheel
NOTE:
Push the rear wheel...

REAR WHEEL
4-18
Damage/wear → Replace.
EAS22120
CHECKING AND REPLACING THE REAR 
WHEEL SPROCKET
1. Check:
 Rear wheel sprocketMore than 1/4 tooth “a” wear  → Replace 
the rear wheel sprocket.
Bent teeth  → Replace the rear wheel 
sprocket.
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...

REAR WHEEL
4-19
WARNING
EWA13500
Make sure the brake hose is routed prop-
erly. 

FRONT BRAKE
4-20
EAS22210
FRONT BRAKE
Removing the front brake pads
Order Job/Parts to remove Q’ty Remarks1 Brake hose holder 1
2 Front brake caliper 1
3 Brake pad clip 2
4 Brake pad pin 1
5 Brake pad spring 1
6Brake pad 2
7 Bleed screw 1 For installation, reverse the removal 
procedure. 

FRONT BRAKE
4-21
Removing the front brake master cylinder
Order Job/Parts to remove Q’ty RemarksBrake fluid Drain. Refer to BLEEDING THE HYDRAU-
LIC BRAKE SYSTEM on page 3-
25.
1 Right rearview mirror (FZ1-N) 1
2 Brake master cylinder reservoir cap 1
3 Brake master cylinder reservoir dia- phragm holder 1
4 Brake master cylinder diaphragm 1
5Brake lever 1
6 Front brake light switch lead coupler 1 Disconnect.
7 Front brake light switch 1
8 Union bolt 1
9 Copper washer 2
10 Master cylinder bracket 1
11...

FRONT BRAKE
4-22
Disassembling the front brake master cylinder
Order Job/Parts to remove Q’ty Remarks1 Brake master cylinder kit 1
2 Brake master cylinder body 1 For assembly, reverse the disassem-
bly procedure. 

FRONT BRAKE
4-23
Removing the front brake calipers
Order Job/Parts to remove Q’ty RemarksBrake fluid Drain. Refer to BLEEDING THE HYDRAU-
LIC BRAKE SYSTEM on page 3-
25.
1 Union bolt 1
2 Copper washer 2
3Brake hose 1
4 Brake caliper 1 For installation, reverse the removal 
procedure. 

FRONT BRAKE
4-24
Disassembling the front brake calipers
Order Job/Parts to remove Q’ty Remarks1 Brake pad clip 2
2 Brake pad pin 1
3 Brake pad spring 1
4Brake pad 2
5 Brake caliper piston 4
6 Brake caliper piston seal 8
7 Bleed screw 1 For assembly, reverse the disassem-
bly procedure. 

FRONT BRAKE
4-25
EAS22220
INTRODUCTION
WARNING
EWA14100
Disc brake components rarely require dis-
assembly. Therefore, always follow these 
preventive measures:
 Never disassemble brake components unless absolutely necessary.
 If any connection on the hydraulic brake 
system is disconnected, the entire brake 
system must be disassembled, drained, 
cleaned, properly filled, and bled after 
reassembly.
 Never use solvents on internal brake  components.
 Use only clean or new brake fluid for  cleaning...