Yamaha YZF-R6, Service Manual

Page: 282 / 425

7-5
FRONT WHEEL AND BRAKE DISCS
CHAS
NOTE:
EAS00533
CHECKING THE BRAKE DISCS
The following procedure applies to both of the
brake discs.
1. Check:
brake disc
Damage / galling
Replace.
2. Measure:
brake disc deflection
Out of specification
Correct the brake disc
deflection or replace the brake disc.
Max. brake disc deflection
Front: 0.1 mm
Rear: 0.1 mm
a. Place the motorcycle on a suitable stand so
that the wheel is elevated.
b. Before measuring the front brake disc
deflection, turn the handlebars to the left or
right to ensure that the front wheel is station-
ary.
c. Remove the brake caliper.
d. Hold the dial gauge at a right angle against
the brake disc surface.
e. Measure the deflection 1.5 mm below the
edge of the brake disc.
3. Measure:
brake disc thickness
Measure the brake disc thickness at a few
different locations.
Out of specification
Replace.
Min. brake disc thickness
Front: 4.5 mm
Rear: 4.5 mm
4. Adjust:
brake disc deflection
a. Remove the brake disc.
b. Rotate the brake disc by one bolt hole.
c. Install the brake disc.
Tighten the brake disc bolts in stages and in a
crisscross pattern.