Yamaha MBK MW125 2014, Service Manual

Page: 139 / 380

FRONT WHEELS
4-30
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EAS30152
ADJUSTING THE FRONT WHEEL STATIC
BALANCE
The following procedure applies to both of the
front wheels.
TIP
• 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
TIP
Place the front wheel on a suitable balancing
stand.
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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 (c) through (e) 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”.
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3. Adjust:
• Front wheel static balance
TIP
• Install the balancing weights on the rim of the
brake disc side of the wheel.
• Install up to four balancing weights on the rim.
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a. Install a balancing weight “1” onto the rim ex-
actly opposite the heavy spot “X”.
TIP
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.