Yamaha YZ450F 2021 - Page 143

REAR BRAKE
4-29
2. Measure:
• Brake pad wear limit “a”
Out of specification  Replace the brake
pads as a set.
3. Install:
• Brake pads
a. Connect the plastic hose “1” to the bleed
screw “2” and place a container under the
end of the plastic hose.
b. Loosen the bleed screw and push the
brake caliper piston in.
WARNING
EWA19170
Do not reuse the drained brake fluid.
c. Tighten the bleed screw.
d. Install the brake pads “3” and the pad pin
“4”.
TIP
• Install the brake pads with their projections “a”
into the brake caliper recesses “b”.
• Temporarily tighten the pad pin at this point.
e. Install the brake caliper “5” and the rear
wheel “6”.
Refer to “REAR WHEEL” on page 4-9.
f. Tighten the pad pin “7”.
g. Install the pad pin plug “8” and the
protector “9”.
Brake pad lining thickness limit
1.0 mm (0.04 in)
7
6
a
2
1
Bleed screw
6 N·m (0.6 kgf·m, 4.4 lb·ft)
Pad pin
17 N·m (1.7 kgf·m, 13 lb·ft)
Pad pin plug
2.5 N·m (0.25 kgf·m, 1.8 lb·ft)
Bolt (protector)
7 N·m (0.7 kgf·m, 5.2 lb·ft)
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3
4
a
b
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7
7
5
5
6
6
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