Honda NSS250S Manual page 474

HYDRAULIC BRAKE
LEFT (COMBINED) BRAKE LINE
Remove the muffler (page 3-32).
Support the scooter on its center stand and turn the
handlebar until the reservoir is parallel to the
ground.
Remove the screws, reservoir cap, diaphragm plate
and diaphragm from the left master cylinder.
Connect a bleed hose to the front brake caliper
lower bleed valve.
Loosen the bleed valve and pump the left brake
lever until no more fluid flows out of the bleed
valve.
Tighten the front brake caliper lower bleed valve.
Connect a bleed hose to the rear brake caliper bleed
valve.
Loosen the bleed valve and pump the left brake
lever until no more fluid flows out of the bleed
valve.
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SCREWS
DIAPHRAGM PLATE
FRONT LOWER
BLEED VALVE
REAR BLEED VALVE
RESERVOIR CAP
DIAPHRAGM
LEFT BRAKE LEVER