Brake System Troubleshooting - Honda CB250N Shop Manual

Brake System
Troubleshooting
Front Brake: Rear Brake:
Brake Lever
Soft or
Spongy
Air
bubbles
in
the hydraulic
system
Leaking hydraulic
system
•
Contaminated brake pad/disc
•
Worn
caliper
piston
seal
Worn
master
cylinder
piston cups
-
Worn
brake ped/dicc
•
Contaminated
caliper
•
Caliper not
sliding
properly
•
Low
brake
fluid level
Clogged
fluid
passage
•
Warped/deformed
brake disc
•
Sticking/worn
caliper
piston
Sticking/worn master
cylinder piston
•
Contaminated master
cylinder
Bent brake
lever
Brake Lever Hard
•
Clogged/restricted brake
system
Sticking/worn
caliper
piston
•
Caliper not
sliding
properly
-
Clogged/restricted
fluid
passage
•
Worn
caliper
piston
seal
•
Sticking/worn master
cylinder piston
•
Bent brake
lever
Brake
Grab
or
Pull
to
One
Side
•
Contaminated
brake pad/disc
•
Misaligned wheel
•
Clogged/restricted brake/hose
joints
-
Warped/deformed
brake
disc
Caliper
not
sliding properly
Poor Brake Performance
•
Improperly adjusted brake
•
Worn
brake
linings
•
Worn
brake
drum
•
Worn
brake
cam
•
Improperly
installed
brake
linings
•
Brake
linkage
needs lubrication
•
Contaminated
brake linings
•
Contaminated
brake
drum
•
Worn
brake
shoes
at
cam
contact area
•
improper
engagement between
brake
arm and cam
serrations.
Brake Pedal
Hard
or
Slow
to
Return
Worn/broken return spring
•
Improperly adjusted brake
•
Shoes sticking to
brake
drum
due
to
contamination
•
Worn
brake
shoes
at
cam
contact areas
•
Brake linkage
needs
lubrication
•
Worn
brake
cam
improperly installed
brake
linings
Brake
Squeaks
•
Worn
brake linings
•
Worn
brake
drum
Contaminated brake
linings
•
Contaminated
brake
drum
Brakes
Drag
Contaminated brake pad/disc
Misaligned wheel
•
Worn
brake pad/disc
Warped/deformed
brake
disc
Caliper
not
sliding properly
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