HYOSUNG COMET 125 Service Manual page 134

MASTER CYLINDER DISASSEMBLY
Drain brake fluid the master cylinder.
Disconnect the brake lamp switch lead wire coupler.
Remove the union bolt
CAUTION
Place a rag under the union bolt so that brake
fluid can not contact the parts.
Remove the two clamp bolts and take off the master
cylinder.
Remove the two fitting screws and separate the cap
and diaphragm.
Detach the dust seal boot
Pull out the piston/cup set
.
and remove the circlip.
and spring .
CHASSIS 6-10