Honda NSS250S Manual page 495

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Place a shop towel over the pistons.

Position the caliper body with the pistons down and

apply short bursts of air pressure to the fluid inlet to

remove the three pistons.

• Do not use high pressure air or bring the nozzle

too close to the inlet.

• Mark the pistons to ensure that they are rein-

stalled in their original locations.

Remove the dust seals and piston seals.

Be careful not to

damage the piston

Clean the seal grooves, caliper cylinders and pis-

sliding surface.

tons with clean brake fluid.

Check the caliper cylinder for scoring or other dam-

Measure the caliper cylinder I.D.

SERVICE LIMITS:

Upper: 27.060 mm (1.0654 in)

Middle: 22.710 mm (0.8941 in)

Lower: 27.060 mm (1.0654 in)

Check the caliper pistons for scratches, scoring or

other damage.

Measure the caliper piston O.D.

SERVICE LIMITS:

Upper: 26.91 mm (1.059 in)

Middle: 22.56 mm (0.888 in)

Lower: 26.91 mm (1.059 in)

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HYDRAULIC BRAKE

PISTON SEALS

CALIPER BODY

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