Honda CBR125R Owner's Manual page 338

HYDRAULIC BRAKE
BRAKE FLUID FILLING/AIR BLEEDING
Fill the reservoir with DOT 3 or DOT 4 brake fluid
Do not mix different
from a sealed container.
types of fluid. They
are not compatible.
Connect a automatic refill system to the reservoir.
If an automatic refill system is not used, add fluid
when the fluid level in the reservoir is low.
Check the fluid level often while bleeding the brake
to prevent air from being pumped into the system.
When using a brake bleeding tool, follow the manu-
facturer's operating instructions.
Connect a commercially available brake bleeder to
the bleed valve.
Operate the brake bleeder and loosen the bleed
valve.
Perform the bleeding procedure until the system is
If air enters the
completely flushed/bled.
bleeder from
Close the bleed valve and operate the brake lever/
around the bleed
pedal. If it still feels spongy, bleed the system again.
valve threads, seal
the threads with
After bleeding the system completely, tighten the
teflon tape.
brake caliper bleed valve to the specified torque.
TORQUE: 5.4 N·m (0.6 kgf·m, 4.0 lbf·ft)
If the brake bleeder is not available, perform the fol-
lowing procedure.
Pump up the system pressure with the brake lever/
pedal until the lever/pedal resistance is felt.
Connect a bleed hose to the bleed valve.
1. Squeeze the brake lever/pedal all the way and
loosen the bleed valve 1/2 turn. Wait several sec-
onds and then close the bleed valve.
• Do not release the brake lever/pedal until the
bleed valve has been closed.
2. Release the brake lever/pedal slowly and wait
several seconds after it reaches the end of its
travel.
3. Repeat the steps 1 and 2 until there are no air
bubbles in the bleed hose.
After bleeding the system completely, tighten the
brake caliper bleed valve to the specified torque.
TORQUE: 5.4 N·m (0.6 kgf·m, 4.0 lbf·ft)
15-6
FRONT: REAR:
FRONT:
BRAKE BLEEDER
FRONT:
FRONT:
BLEED HOSE
BLEED VALVE
BRAKE LEVER
BLEED VALVE