Brake System
14. Brake System
14-1
Service Information 14-1
Troubleshooting 14-1
Brake Fluid/Bleeding 14-2
Brake Pad 14-3
Brake Disk 14-5
Brake Caliper 14-6
Master Cylinder 14-8
Service Information
General Safety
● Do not allow foreign material to enter the system when replenishing brake fluid.
● To prevent chemical changes, do not mix different types of brake fluid.
● Do not use the old brake fluid again.
● Brake fluid can cause damage to painted, plastic, and rubber surfaces. Take precautions not to allow parts
to be contaminated by the brake fluid.
● Do not reuse sealing washers.
● Clean the disassembled parts with brake fluid, and check for any clogged passage with compressed air.
● Bleed the brake hose after removing it.
Troubleshooting
Braking power unsatisfactory
● Air in the brake system
● Moisture in brake fluid
● Brake pad and disk contaminated
● Caliper piston seal worn
● Master cylinder piston seal worn
● Brake pad worn
● Caliper inside contaminated
● Unsatisfactory caliper sliding part operation
● Lopsided wear of brake pad and disk
● Low brake fluid level
● Clogged brake fluid line
● Disk bent or distorted
● Caliper piston seized or worn
● Master cylinder piston seized or worn
● Disk worn
● Master cylinder inside contaminated
● Brake lever bent
Hard brake lever movement or
unsatisfactory return
● Brake system clogged
● Caliper piston seized or worn
● Unsatisfactory caliper sliding part operation
● Brake fluid line clogged
● Caliper piston seal worn
● Master cylinder piston seized or worn
● Brake lever bent
Brake drag
● Brake pad and disk contaminated
● Improper wheel alignment
● Lopsided wear of brake pad and disk
● Disk bent or distorted
● Unsatisfactory caliper sliding part operation
● Hydraulic system contaminated with dust.
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