Yamaha YZF-R1B 2012 Service Manual page 181

Manuals by Motomatrix / www.motomatrix.co.uk / The Solution For Lost Motorcycle Coded Keys
f. If the front speed sensor rotor deflection
cannot be brought within specification,
replace the front speed sensor rotor.
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EAS21970
ADJUSTING THE FRONT WHEEL STATIC
BALANCE
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 discs and the front speed sensor rotor
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
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.
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f. Repeat steps (b) 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
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a. Install a balancing weight "1" onto the rim
exactly opposite the heavy spot "X".
TIP
Start with the lightest weight.
"
1
b. Turn the front wheel 90° so that the heavy
spot is positioned as shown.
"
1
" mark at
2
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.
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4-22
FRONT WHEEL