FRONT BRAKE CALIPER. Honda CBR125R

HYDRAULIC BRAKE

Install the master cylinder to the brake pedal and install the joint pin and new cotter pin.

JOINT PIN

COTTER PIN

Install the right step holder assembly and step holder mounting bolts.

Tighten the step holder mounting bolts to the specified torque.

TORQUE: 27 N·m (2.8 kgf·m, 20 lbf·ft)

Tighten master cylinder mounting bolts.

MASTER CYLINDER

MOUNTING BOLTS

STEP HOLDER

MOUNTING BOLTS

STEP HOLDER ASSEMBLY

Install the brake hose eyelet with the brake hose oil bolt and new sealing washers.

Push the brake hose eyelet joint against the stopper, then tighten the brake hose oil bolt to the specified torque.

TORQUE: 34 N·m (3.5 kgf·m, 25 lbf·ft)

Fill the reservoir to the upper level and bleed the

rear brake system (page 15-6).

STOPPER OIL BOLT

SEALING WASHERS

FRONT BRAKE CALIPER

REMOVAL

Drain the brake fluid from the hydraulic system

(page 15-5).

Remove the brake pads (page 15-8).

When removing the oil bolt, cover the end of brake hose to prevent contamination.

Remove the brake hose oil bolt, sealing washers and brake hose eyelet.

Remove the brake caliper mounting bolts and brake caliper/bracket assembly.

BRAKE HOSE

OIL BOLT

BOLTS

SEALING WASHER

CALIPER/BRACKET

ASSEMBLY

15-20

DISASSEMBLY

Remove the following:

– Caliper bracket

– Pin boots

– Pad spring

BRACKET

HYDRAULIC BRAKE

PAD SPRING

PIN BOOTS

Do not use high pressure air or bring the nozzle too close to the inlet.

Place a shop towel over the pistons.

Position the caliper body with the piston facing down and apply small squirts of air pressure to the fluid inlet to remove the pistons.

Be careful not to damage the piston sliding surface.

Push the dust and piston seals in and lift them out.

Clean the seal grooves, caliper cylinder and pistons with clean brake fluid.

PISTON SEAL DUST SEAL

INSPECTION

Check the caliper cylinders for scoring, scratches or damage.

Measure the caliper cylinder I.D.

SERVICE LIMIT: 25.460 mm (1.0024 in)

Check the caliper pistons for scoring, scratches or damage.

Measure the caliper piston O.D.

SERVICE LIMIT: 25.310 mm (0.9965 in)

15-21

HYDRAULIC BRAKE

ASSEMBLY

CALIPER BRACKET

DUST SEAL

5.4 N·m (0.6 kgf·m, 4.0 lbf·ft)

PISTON SEAL

BOOT

CALIPER BODY

CALIPER PISTON

O-RING

PAD SPRING

17 N·m (1.7 kgf·m, 13 lbf·ft)

Apply brake fluid to new piston seals.

Apply silicone grease to new dust seals.

Install the piston and dust seals into the seal grooves in the caliper body.

Apply brake fluid to the caliper pistons sliding area and install them into the caliper cylinders with the opening side toward the pad.

BRAKE PADS

CALIPER BODY DUST SEAL

PISTON SEAL

Install the pad spring onto the caliper body.

Apply silicone grease to the brake caliper pin bolt

sliding surface (page 1-17).

Install the caliper bracket to the caliper body.

BRACKET

CALIPER PISTON

PAD SPRING

PIN BOLTS

15-22