Honda NSS250S Manual page 486

HYDRAULIC BRAKE
• Keep the piston, cups, spring, snap ring and boot
as a set; do not replace the parts individually.
• Be sure that each parts is free from the dust or
dirt before reassembly.
Coat the master piston outer surface, piston cup
whole surface and master cylinder inner surface
with clean DOT 4 brake fluid.
Install the spring onto the master piston.
Install the spring to the master piston rod.
Install the spring and master piston into the master
Do not allow the
cylinder.
piston cup lips to
turn inside out.
Install the washer and snap ring into the groove in
Install the snap ring
the master cylinder.
with its chamfered
edge facing the
TOOL:
thrust load side.
Snap ring pliers
• Check that the snap ring is seated in the groove.
• Do not reuse the snap ring which could easily
spin in the groove.
Install the piston boot into the master cylinder and
groove in the piston.
Apply silicone grease to the master piston tip-to-
brake lever contacting area.
Instal the brake light switch by aligning the boss of
the switch body with the hole of the master cylin-
der.
Install and tighten the screw to the specified torque.
TORQUE: 1.2 N·m (0.1 kgf·m, 0.9 lbf·ft)
17-20
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SPRING
MASTER PISTON
WASHER
SNAP RING PLIERS
PISTON BOOT
BRAKE LIGHT SWITCH
Align SCREW
CUPS
SNAP RING