Yamaha XG250, Service Manual

Page: 85 / 278

FRONT WHEEL
4-6
the wheel bearing outer race and oil seal.
b. Check the front brake disc.
Refer to “CHECKING THE FRONT BRAKE
DISC” on page 4-18.
▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲
EAS21970
ADJUSTING THE FRONT WHEEL STATIC
BALANCE
NOTE:
●
After replacing the tire, wheel or both, the front
wheel static balance should be adjusted.
●
Adjust the front wheel static balance with the
brake disc installed.
1. Remove:
●
Balancing weight(s)
2. Find:
●
Front wheel’s heavy spot
NOTE:
Place the front wheel on a suitable balancing
stand.
▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼
a. Spin the front wheel.
b. When the front wheel stops, put an “X
1
” mark
at the bottom of the wheel.
c. Turn the front wheel 90
°
so that the “X
1
” mark
is positioned as shown.
d. Release the front wheel.
e. When the wheel stops, put an “X
2
” mark at
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”.
▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲
3. Adjust:
●
Front wheel static balance
▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼
a. Install a balancing weight “1” onto the rim ex-
actly 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-
4
3
2
1
X
1
X
X