Yamaha XT660R S Service Manual page 156

FRONT WHEEL AND BRAKE DISC
http://manuals.magnamaniac.com
4 - 9
2. Find:
• front wheel's heavy spot
NOTE:
_
Place the front wheel on a suitable balancing
stand.
M MMM M MMM M M MMM M
a. Spin the front wheel.
b. When the front wheel stops, put an "X
mark at the bottom of the wheel.
c. Turn the front wheel 90° so that the "X
mark is positioned as shown.
d. Release the front wheel.
e. When the wheel stops, put an "X
the bottom of the wheel.
f. Repeat steps (d) through (f) several times
until all the marks come to rest at the same
spot.
g. The spot where all the marks come to rest
is the front wheel's heavy spot "X".
L LLL L LLL L L LLL L
3. Adjust:
• front wheel static balance
M MMM M MMM M M MMM M
a. Install a balancing weight 1 onto the rim
exactly opposite the heavy spot "X".
NOTE:
_
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.
L LLL L LLL L L LLL L
4. Check:
• front wheel static balance
M MMM M MMM M M MMM M
a. Turn the front wheel and make sure it stays
at each position shown.
b. If the front wheel does not remain stationary
at all of the positions, rebalance it.
L LLL L LLL L L LLL L
CHAS
M MMM M M MMM M M MMM M
" mark at
2
L LLL L L LLL L L LLL L
M MMM M M MMM M M MMM M
L LLL L L LLL L L LLL L
M MMM M M MMM M M MMM M
L LLL L L LLL L L LLL L
MMM
"
1
"
1
LLL
MMM
LLL
MMM
LLL