Honda SH125 Manual page 258

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Install the brake disc on the wheel hub with the
on the brake disc or stamp facing out.
stopping power will Install the new disc bolts and tighten them in a criss-
be reduced. cross pattern in several steps.
TORQUE: 42 N-m (4.3 kgf.m, 31 Ibf.f't)
WHEEL BALANCE
NOTE:
Mount the tire with the arrow mark facing in the
direction of rotation.
For optimum balance, the tire balance mark (light
mass point: a paint dot on the side wall) must be
located next to the valve stem. Remount the tire
if necessary.
The wheel balance must be checked when the
front tire is remounted.
Mount the wheel, tire and brake disc assembly on
an inspection stand.
Spin the wheel, allow it to stop, and mark the lowest
(heaviest) part of the wheel with chalk.
Do this two or three times to verify the heaviest
area.
If
the wheel is balanced, it will not stop consistently
in the same position.
I \
STAND
I
To balance the wheel, install a balance weight on
the lightest side of the rim, on the side opposite the
chalk marks. Add just enough weight
so
the wheel
will no longer stop in the same position when it is
spun.
Do not add more than 70 g (2.5
02)
to the front
wheel.