Yamaha Yzf R1 2007 Manual

FRONT BRAKE
4-29
 Whenever a brake caliper is disassem-
bled, replace the brake caliper piston 
seals.
EAS22450
INSTALLING THE FRONT BRAKE CALI-
PERS
The following procedure applies to both of the 
brake calipers.
1. Install:
 Brake pads
 Brake pad springs
 Brake pad pins
2. Install:
 Brake caliper “1”
 Copper washers 
 Brake hose “2”
 Union bolt “3”
 Brake hose holder
WARNING
EWA13530
Proper brake hose routing is essential to 
insure safe vehicle operation. Refer to 
CABLE ROUTING on page...

FRONT BRAKE
4-30
6. Check:
 Brake lever operation
Soft or spongy feeling → Bleed the brake 
system.
Refer to BLEEDING THE HYDRAULIC 
BRAKE SYSTEM on page 3-25.
EAS22490
REMOVING THE FRONT BRAKE MASTER 
CYLINDER
NOTE:
Before removing the front brake master cylin-
der, drain the brake fluid from the entire brake 
system.
1. Disconnect:
 Brake switch coupler “1”
(from the brake switch)
2. Remove:
 Union bolt “2”
 Copper washers “3”
 Brake hoses “4”
NOTE:
To collect any remaining brake fluid, place a...

FRONT BRAKE
4-31
EAS22520
ASSEMBLING THE FRONT BRAKE MAS-
TER CYLINDER
WARNING
EWA13520
 Before installation, all internal brake com-
ponents should be cleaned and lubricated 
with clean or new brake fluid.
 Never use solvents on internal brake 
components.
1. Instal:
 Brake master cylinder kit 
EAS22540
INSTALLING THE FRONT BRAKE MASTER 
CYLINDER
1. Install:
 Brake master cylinder “1”
 Brake master cylinder holder “2”
NOTE:
 Install the brake master cylinder holder with 
the “UP” mark “a” facing...

FRONT BRAKE
4-32
WARNING
EWA13090
 Use only the designated brake fluid. 
Other brake fluids may cause the rubber 
seals to deteriorate, causing leakage and 
poor brake performance.
 Refill with the same type of brake fluid 
that is already in the system. Mixing brake 
fluids may result in a harmful chemical 
reaction, leading to poor brake perfor-
mance.
 When refilling, be careful that water does 
not enter the brake fluid reservoir. Water 
will significantly lower the boiling point of 
the brake...

REAR BRAKE
4-33
EAS22550
REAR BRAKE
Removing the rear brake pads
Order Job/Parts to remove Q’ty Remarks
1 Screw plug 1
2 Brake pad pin 1
3 Rear brake caliper 1
4 Brake pad shim 4
5 Brake pad 2
6 Bleed screw 1
7 Brake pad spring 1
For installation, reverse the removal proce-
dure. 

REAR BRAKE
4-34
Removing the rear brake master cylinder
Order Job/Parts to remove Q’ty Remarks
Brake fluidDrain.
Refer to BLEEDING THE HYDRAULIC 
BRAKE SYSTEM on page 3-25.
1 Footrest plate 1
2 Brake fluid reservoir cap 1
3 Rear brake fluid reservoir diaphragm holder 1
4 Rear brake fluid reservoir diaphragm 1
5 Brake fluid reservoir tank 1
6 Brake fluid reservoir hose 1
7 Hose joint 1
8Bush 1
9 Union bolt 1
10 Copper washer 2
11 Brake hose 1
12 Brake master cylinder 1
For installation, reverse the...

REAR BRAKE
4-35
Disassembling the rear brake master cylinder
Order Job/Parts to remove Q’ty Remarks
1 Brake master cylinder kit 1
2 Hose joint 1
3Bush 1
4 Brake master cylinder body 1
For assembly, reverse the disassembly pro-
cedure. 

REAR BRAKE
4-36
Removing the rear brake calipers
Order Job/Parts to remove Q’ty Remarks
Brake fluidDrain.
Refer to BLEEDING THE HYDRAULIC 
BRAKE SYSTEM on page 3-25.
1 Union bolt 1
2 Copper washer 2
3 Brake hose 1
4 Brake caliper 1
For installation, reverse the removal proce-
dure. 

REAR BRAKE
4-37
Disassembling the rear brake calipers
Order Job/Parts to remove Q’ty Remarks
1 Screw plug 1
2 Brake pad pin 1
3 Brake pad 2
4 Brake pad shim 4
5 Brake pad spring 1
6 Brake caliper piston 1
7 Brake caliper piston seal 2
8 Bleed screw 1
For assembly, reverse the disassembly pro-
cedure. 

REAR BRAKE
4-38
EAS22560
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...