Yamaha YZFR1W 2007, Service Manual

Page: 133 / 429

FRONT WHEEL
4-11
c. Remove the wheel bearings “3” with a gen-
eral bearing puller.
d. Install the new wheel bearings and oil seals
in the reverse order of disassembly.
CAUTION:
ECA14130
Do not contact the wheel bearing inner race
“4” or balls “5”. Contact should be made
only with the outer race “6”.
NOTE:
Use a socket “7” that matches the diameter of
the wheel bearing outer race and oil seal.
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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.
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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 (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”.
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3. Adjust:
• Front wheel static balance
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a. Install a balancing weight “1” onto the rim
exactly opposite the heavy spot “X”.