Brake Symptom Diagnosis; Front Brake Light Switch Inspection; Diagnostic Information And Procedures; Repair Instructions - Suzuki GSX-R1000 Service Manual

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Brake Symptom Diagnosis

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

Brake Pedal Height Inspection and Adjustment

Refer to "Brake System Inspection" in Section 0B
(Page 0B-16).

Front Brake Light Switch Inspection

Inspect the front brake light switch in the following
procedures:
1) Disconnect the front brake light switch coupler (1).
1
email: info@motomatrix.co.uk / www.motomatrix.co.uk

Diagnostic Information and Procedures

Possible cause
Leakage of brake fluid from hydraulic
system.
Worn pads and disc.
Oil adhesion on friction surface of pads. Clean disc and pads.
Air in hydraulic system.
Not enough brake fluid in the reservoir. Replenish.
Carbon adhesion on pad surface.
Tilted pad.
Damaged wheel bearing.
Loose front wheel axle or rear wheel
axle.
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 seals and dust seals.
Rusty part.
Insufficient brake lever or brake pedal
pivot lubrication.

Repair Instructions

B947H14106001
B947H14106002
I947H1410001-03
Brake Control System and Diagnosis:
Correction / Reference Item
Repair or replace.
Replace.
Bleed air.
Repair surface with sandpaper.
Correct pad fitting or replace.
Replace.
Tighten to specified torque.
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 seals and dust seals.
Clean and lubricate.
Lubricate.
2) Inspect the front brake light switch for continuity with
the tester.
If any abnormality is found, replace the front brake
light switch with a new one. Refer to "Front Brake
Master Cylinder / Brake Lever Disassembly and
Assembly" (Page 4A-11).
Special tool
: 09900–25008 (Multi circuit tester set)
Tester knob indication
Continuity ( )
Color
Terminal (B/R)
Position
OFF
ON
3) Connect the front brake light switch coupler.
4A-3
B947H14104001
Terminal (B/BI)
I815H1410006-01