Suzuki RM250 Owner's Service Manual page 188

• Wrap the caliper with a rag to prevent brake fluid scatter and
piston pop-out.
• Apply low-pressure air into the caliper through the hole to
remove the pistons.
Fingers can get caught between piston and caliper
body when removing the piston.
Do not place your fingers on the piston when remov-
ing the piston.
• Remove the pistons 3, the dust seals 4 and piston seals 5.
INSPECTION
• Inspect the caliper cylinder for scuffing.
• Inspect the caliper piston for scuffing.
CLEANING
• Flush the caliper ports with pressurized air.
• Wash the caliper piston and cylinder with fresh brake fluid.
 Specification and classification: DOT 4
NOTE:
Do not use gasoline or other cleaning solvents to wash the cali-
per parts.
WARNING
FRONT AND REAR BRAKES 15-9