Yamaha YZF-R6 99, Service Manual

Page: 264 / 400

7-7
FRONT WHEEL AND BRAKE DISCS
CHAS
NOTE:
1. Remove:
S
balancing weight(-s)
2. Find:
S
front wheel’s heavy spot
a. Place the front wheel on a suitable balancing
stand.
b. Spin the front wheel.
c. When the front wheel stops, put an “X
1
” mark
at the bottom of the wheel.
d. Turn the front wheel 90
_
so that the “X
1
” mark
is positioned as shown.
e. Release the front wheel.
f. When the front wheel stops, put an “X
2
” mark
at the bottom of the wheel.
g. Repeat steps (a) through (d) several times
until all the marks come to rest at the same
spot.
h. The spot where all the marks come to rest is
the front wheel’s heavy spot “X”.
3. Adjust:
S
front wheel static balance
a. Install a balancing weight 1 onto the rim ex-
actly opposite the heavy spot “X”.
Start with the lightest weight.
b. Turn the front wheel 90
_
so that the heavy
spot is positioned as shown.
c. If the heavy spot does not stay in that posi-
tion, install a heavier weight.
d. Repeat steps (b) and (c) until the front wheel
is balanced.
4. Check:
S
front wheel static balance
a. Turn the front wheel and make sure that it
stays at each position shown.
b. If the front wheel does not remain stationary
at all of the positions, rebalance it.