Diagnostic Information And Procedures; Brake Symptom Diagnosis - Suzuki kq750 Service Manual

4A-3 Brake Control System and Diagnosis:

Brake Symptom Diagnosis

Condition
Insufficient brake power
Brake squeaking
Excessive brake lever
stroke
Leakage of brake fluid
Brake drags

Diagnostic Information and Procedures

Possible cause
Leakage of brake fluid from hydraulic
system.
Worn pads or friction plate.
Oil adhesion on friction surface of pads. Clean disc and pads.
Worn disc.
Air in hydraulic system.
Not enough brake fluid in the reservoir. Replenish.
Defective adjustment of rear brake.
Carbon adhesion on pad surface.
Tilted pad.
Damaged hub bearing.
Worn pads and disc.
Foreign material in brake fluid.
Clogged return port of master cylinder.
Air in hydraulic system.
Insufficient brake fluid.
Improper quality of brake fluid.
Insufficient tightening of connection
joints.
Cracked hose.
Worn piston and/or cup.
Worn piston seal and dust seal.
Rusty part.
Insufficient brake lever or brake pedal
pivot lubrication.
Correction / Reference Item
Repair or replace.
Replace.
Replace.
Bleed air.
Adjust.
Repair surface with sandpaper.
Correct pad fitting or replace.
Replace.
Replace.
Replace brake fluid.
Disassemble and clean master cylinder.
Bleed air.
Replenish fluid to specified level; bleed air.
Replace with correct fluid.
Tighten to specified torque.
Replace.
Replace piston and/or cup.
Replace piston seal and dust seal.
Clean and lubricate.
Lubricate.
B831G24104001