Yamaha 1998 FZS600 5DM1-AE1, Service Manual

Page: 224 / 364

7-5
FRONT WHEEL AND BRAKE DISC
CHAS
NOTE:
EB700414
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
a
Out of specification Correct the brake
disc deflection or replace the brake disc.
Brake disc deflection limit
(maximum)
Front: 0.2 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
deflection, turn the handlebar to the left or
right to ensure that the front wheel is sta-
tionary.
c. Remove the brake caliper.
d. Hold the dial gauge at a right angle
against the brake disc surface.
e. Measure the deflection 2 3 mm below
the edge of the brake disc.
3. Measure:
S
brake disc thickness b
Measure the brake disc thickness at a few
different locations.
Out of specification
Replace.
Brake disc thickness limit
(minimum)
Front: 3.5 mm
Rear: 4.5 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.
Tighten the brake disc bolts 1 in stages and
in a crisscross pattern.
Brake disc bolt LOCKTITE
R
23 Nm (2.3 m
S
kg)
d. Measure the brake disc deflection.
e. If out of specification, repeat the adjust-
ment steps until the brake disc deflection
is within specification.
f. If the brake disc deflection cannot be
brought within specification, replace the
brake disc.