Front Master Cylinder - Honda CRF450R 2009 Service Manual

HYDRAULIC BRAKE
Install a new O-ring into the pad pin groove.
Install the pad pin while pushing in the brake pads
against the pad spring.
Tighten the pad pin to the specified torque.
TORQUE: 18 N' m (1 .8 kgf'm,
13 1bHt)
Apply the brake pedal to force the caliper piston out of
the caliper.
Rotate the wheel by hand, and check the brake
operation.
BRAKE DISC INSPECTION
After
'12: Remove the brake disc cover (page 14-10).
Visually inspect the brake disc for damage or cracks.
Measure the brake disc thickness with a micrometer.
SERVICE LIMITS :
FRONT: 2.5
mm
(0.10 In)
REAR: 3.5 mm (0.14 In)
Replace the brake disc if the smallest measurement is
less than the service limit.
Measure the brake disc warpage wilh a dial indicator.
SERVICE LIMIT: 0.3
mm
(0.01
in)
Check the wheel bearings for excessive play, if the
warpage exceeds the service limit.
Replace the brake disc
if
the wheel bearings are
normal.
FRONT MASTER CYLINDER
REMOVAL
Drain the front brake hydraulic system (page 16-7).
After '14: Remove the engine mode select switchl
indicator from the handlebar (page 6-76).
wtlen removing the
Remove the brake hose oil bolt, sealing washers and
brake hos6 bolt,
brake hose eyelet.
cover
lhe
end of
the
hos6
10
preVfJnl
conlamination.
Secure/he hosa to
prevent brake fluid
from leaking out.
16·14