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Yamaha YP125R Service Manual

Yamaha YP125R
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FRONT BRAKE
4-23
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 4-9.
EAS22270
REPLACING THE FRONT BRAKE PADS
T
IP
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 pad support
Brake pad spring
Brake pads
T
IP
Always install new brake pads, a new brake pad
spring, and a new brake pad support 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 pad support, new brake pad
spring and new brake pads.
▲▲▲▲▲ ▲▲▲ ▲▲▲ ▲▲▲ ▲▲▲ ▲▲▲
3. Install:
Brake pad pin
Brake pad pin cap
Front brake caliper
Speed sensor lead guide
Front brake caliper bolts
4. 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 3-35.
Brake pad lining thickness (in-
ner)
5.0 mm (0.20 in)
Limit
1.5 mm (0.06 in)
Brake pad lining thickness (out-
er)
5.0 mm (0.20 in)
Limit
1.5 mm (0.06 in)
a
A
A
New
New
New
T
R
.
.
Bleed screw
6 Nm (0.6 m·kgf, 4.3 ft·lbf)
T
R
.
.
Front brake caliper bolt
40 Nm (4.0 m·kgf, 29 ft·lbf)
21
a

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Yamaha YP125R Specifications

General IconGeneral
Engine TypeLiquid-cooled, 4-stroke, SOHC, 4-valve
Bore x Stroke52.4 mm x 57.9 mm
Fuel SystemFuel Injection
Ignition SystemTCI
TransmissionV-Belt Automatic
Front SuspensionTelescopic fork
Rear SuspensionUnit Swing
Front BrakeHydraulic single disc, Ø267 mm
Starter SystemElectric
Rear Tyre140/70-14M/C 62P (Tubeless)

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