
4-18
4-19
FRONT BRAKE
FRONT BRAKE
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INTRODUCTION
WARNING
Disc brake components rarely require disas-
sembly. Therefore, always follow these pre-
ventive measures:
Never disassemble brake components un-
less 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 reas-
sembly.
Never use solvents on internal brake com-
ponents.
Use only clean or new brake fluid for clean-
ing brake components.
Brake fluid may damage painted surfaces
and plastic parts. Therefore, always clean
up any spilt brake fluid immediately.
Avoid brake fluid coming into contact with
the eyes as it can cause serious injury.
FIRST AID FOR BRAKE FLUID ENTERING
THE EYES:
Flush with water for 15 minutes and get im-
mediate medical attention.
CHECKING THE FRONT BRAKE DISC
1. Remove:
Front wheel
Refer to “FRONT WHEEL” on page 4-4.
2. Check:
Brake disc
Damage/galling
→
Replace.
3. Measure:
Brake disc deflection
Out of specification
→
Correct the brake disc
deflection or replace the brake disc.
a. Place the vehicle on a suitable stand so that
the front wheel is elevated.
b. Before measuring the front brake disc deflec-
tion, turn the handlebar to the left or right to
ensure that the front wheel is stationary.
c. Remove the brake caliper.
d. Hold the dial gauge at a right angle against
the brake disc surface.
e. Measure the deflection 5 mm below
the edge of the brake disc.
4. Measure:
Brake disc thickness
Measure the brake disc thickness at a few dif-
ferent locations.
Out of specification
→
Replace.
5. Adjust:
Brake disc deflection
a. Remove the brake disc.
b. Rotate the brake disc by one bolt hole.
c. Install the brake disc.
NOTE:
Tighten the brake disc bolts in stages and in a
crisscross pattern.
Brake disc deflection limit
0.10 mm
Brake disc thickness limit
3.5 mm
T
R
.
.
Front brake disc bolt
23 Nm (2.3 m·kg, 17 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.
6. Install:
Front wheel
Refer to “FRONT WHEEL” on page 4-4.
REPLACING THE FRONT BRAKE PADS
NOTE:
When replacing the brake pads, it is not neces-
sary to disconnect the brake hose or disassem-
ble the brake caliper.
1. Measure:
Brake pad wear limit“a”
Out of specification
→
Replace the brake
pads as a set.
2. Install:
Brake pads
Brake pad spring
Always install new brake pads and a new brake
pad spring as a set.
a. Connect a clear plastic hose “1” tightly to the
bleed screw “2”. Put the other end of the hose
into an open container.
b. Loosen the bleed screw and push the brake
caliper pistons into the brake caliper with your
finger.
c. Tighten the bleed screw.
d. Install new brake pads and a new brake pad
spring.
3. Check:
Brake fluid level
Below the minimum level mark “a”
→
Add the
recommended brake fluid to the proper level.
Refer to “CHECKING THE BRAKE FLUID
LEVEL” on page 3-17.
4. Check:
Brake lever operation
Soft or spongy feeling
→
Bleed the brake sys-
tem.
Refer to “BLEEDING THE HYDRAULIC
BRAKE SYSTEM” on page 3-18.
Brake pad lining thickness (in-
ner)
5.3 mm
Limit
0.8 mm
Brake pad lining thickness (out-
er)
5.3 mm
Limit
0.8 mm
Bleed screw
6 Nm (0.6 m·kg, 4.3 ft·lb)
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Summary of Contents for YZF-R15
Page 1: ...2008 SERVICE MANUAL YZF R15 20P F8197 E0 ...
Page 33: ...2 14 ELECTRICAL SPECIFICATIONS Coil resistance 54 0 66 0 Fuse 20 0A Ω Fuse ...
Page 46: ...2 27 LUBRICATION POINTS AND LUBRICANT TYPES LUBRICATION DIAGRAMS A 1 2 3 4 5 6 7 ...
Page 48: ...2 29 LUBRICATION POINTS AND LUBRICANT TYPES 1 2 3 4 ...
Page 49: ...2 30 LUBRICATION POINTS AND LUBRICANT TYPES 1 Camshaft 2 Crankshaft 3 Main axle 4 Drive axle ...
Page 50: ...2 31 COOLING SYSTEM DIAGRAMS COOLING SYSTEM DIAGRAMS 1 2 3 4 1 5 7 6 4 ...
Page 52: ...2 33 CABLE ROUTING CABLE ROUTING 1 5 2 3 6 4 8 7 ...
Page 54: ...2 35 CABLE ROUTING A A B B C C A A C C B B A B C 1 2 3 4 5 4 5 6 6 7 8 9 10 11 10 11 12 12 ...
Page 56: ...2 37 CABLE ROUTING 1 2 5 4 3 ...
Page 60: ...2 41 CABLE ROUTING A A B C D E 1 2 3 4 5 6 7 8 9 10 A ...
Page 121: ...4 24 FRONT BRAKE Refer to BLEEDING THE HYDRAULIC BRAKE SYSTEM on page 3 18 ...
Page 249: ...7 8 THROTTLE BODY ...
Page 250: ...7 9 AIR INDUCTION SYSTEM AIR INDUCTION SYSTEM 1 2 5 4 5 6 3 2 1 6 4 3 ...
Page 257: ......
Page 269: ...8 12 CHARGING SYSTEM 1 AC magneto 2 Rectifier regulator 3 Battery 42 Fuse ...
Page 271: ...8 14 CHARGING SYSTEM ...
Page 275: ...8 18 LIGHTING SYSTEM ...
Page 285: ...8 28 COOLING SYSTEM ...
Page 311: ...8 54 FUEL PUMP SYSTEM ...