Checking The Brake Discs - Yamaha XVZ13TF 1999 Service Manual

FRONT WHEEL AND BRAKE DISCS
7-6
EAS00531

CHECKING THE BRAKE DISCS

The following procedure applies to all of the
brake discs.
1. Check:
S brake disc
Damage/galling ! Replace.
2. Measure:
S brake disc deflection
Out of specification ! Correct the brake disc
deflection or replace the brake disc.
Brake disc deflection limit
(maximum)
Front: 0.15 mm
Rear: 0.15 mm
a. Place the motorcycle on a suitable stand so
that the wheel is elevated.
b. Before measuring the front brake disc deflec-
tion, turn the handlebar to the left or right to
ensure that the front wheel is stationary.
c. Remove the brake caliper.
d. Hold the dial gauge 1 at a right angle
against the brake disc surface.
e. Measure the deflection 2 X 3 mm b below
the edge of the brake disc.
3. Measure:
S brake disc thickness a
Measure the brake disc thickness at a few
different locations.
Out of specification ! Replace.
Brake disc thickness limit
(minimum)
Front: 4.5 mm
Rear: 6.5 mm
4. Adjust:
S brake disc deflection
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.
CHAS