Checking The Brake Discs - Yamaha YZF-R1S Service Manual

FRONT WHEEL AND BRAKE DISCS
EAS00533

CHECKING THE BRAKE DISCS

The following procedure applies to all of the
brake discs.
1. Check:
2. Measure:
a. Place the motorcycle on a suitable stand so
b. Before measuring the front brake disc deflec-
c. Remove the brake caliper.
d. Hold the dial gauge at a right angle against
e. Measure the deflection 1.5 mm (0.06 in) be-
3. Measure:
4. Adjust:
a. Remove the brake disc.
b. Rotate the brake disc by one bolt hole.
c. Install the brake disc.
NOTE:
Tighten the brake disc bolts in stages and in a
crisscross pattern.
4-5
S brake disc
Damage/galling ! Replace.
S brake disc deflection
Out of specification ! Correct the brake disc
deflection or replace the brake disc.
Brake disc deflection limit
(maximum)
Front : 0.1 mm (0.004 in)
Rear : 0.15 mm (0.006 in)
that the wheel is elevated.
tion, turn the handlebars to the left or right to
ensure that the front wheel is stationary.
the brake disc surface.
low the edge of the brake disc.
S brake disc thickness
Measure the brake disc thickness at a few
different locations.
Out of specification ! Replace.
Brake disc thickness limit
(minimum)
Front : 4.0 mm (0.16 in)
Rear : 4.5 mm (0.18 in)
S brake disc deflection
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