Rear Caliper Removal And Disassembly; Caliper Inspection; Caliper Cleaning - Suzuki RM250 Owner's Service Manual

14·6 FRONT AND REAR BRAKES
Rea r Caliper Removal and Disassembly
• Place a block under the chassis tu bes.
• Place a rag under the brake hose union bolt to catch
spilled brake fluid .
• Disconnect the brake hose.
• Remove the brake pad mounting bolts .
• Remove the cotter pin and axle nut.
• Draw out the axle shaft.
• Slide off the caliper bracket w it h the ca liper .
• Remove the brake pads and spring from the caliper.
• Wrap the caliper with a rag to prevent brake fluid scat-
ter and piston pop-out.
• Apply low-pressure ai r into the ca liper through the hole
to remove the piston.
A WARNING
Fingers can get caught between piston and caliper body
when removing the piston.
Do not place your fingers on the piston when removing
the piston .
• Remove the piston seal and dust seal.
Caliper Inspection
• Measure the caliper cylinder bore with a small bore gauge.
Fron. : 27 .000 - 27 .050 mm 11 .0630-1 .0650 in)
Rear: 30.000 - 30.050 mm 11 .1811 - 1.1831 in)
• Inspect the caliper cylinder for scuffing.
• Measure the caliper piston diameter with a micrometer.
Front:
26.900 - 26.950 mm 11 .0591 - 1 .0610
in)
Rear: 29 .900 -29 .950 mm 11.1772 - 1 .1791 in)
• Inspect the caliper piston for scuffing .
Caliper Cleaning
• Flush the Caliper ports with pressurized air .
• Wash the caliper piston and cyl inder with fresh brake
fluid .
NOTE: Do not use gasoline or other cleaning solvents to
wash the caliper parts.
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