Replace it if necessary.

Inner Tube Inspection
Spring Tension InspectionHandlebar Installation
Apply a non-permanent locking agent to the threads of
the handlebar positioning bolts and tighten them.
Torque - Handlebar Positioning Bolts: 9.8 N·m (1.0 kgf·m,
87 in·lb)
Install the steering stem head with handlebars.
Install the washer [A] and steering stem head nut [B].
Tighten:
...
Brake Disc Installation
Install the brake disc on the wheel so that the marked side
[A] faces out.
Front Brake Discs [B]
Rear Brake Disc [C]
Apply a non-permanent locking agent to the threads of
the brake disc mounting bolts.
Tighten:
Torque - Brake Disc Mounting Bolts: 27 N·m (2.8 kgf·m, 20
...
Footpeg
Footpeg Height Adjustment
The front footpeg can be adjusted within 2 positions in
height to suit the rider’s preference.
Footpeg [A]
Bolts [B]
Bolt Holes [C]
Footpeg Position 1 [D]
Footpeg Position 2 [E]
Remove the bolts [A].
Adjust the footpeg height.
NOTE
In ...