Replace it if necessary.

Inner Tube Inspection
Spring Tension InspectionMeter instruments
Upper Button
Lower Button
Tachometer (with Shift-Up
Indicator)
Red Zone
Ambient Brightness
Sensor
Turn Signal Indicator Light
Warning Indicator Light
(Red)
Neutral Indicator Light
Multifunction Meter
High Beam Indicator Light
Warning Indicator Light
(Yellow)
Fuel ...
Drive Chain Wear Inspection
Remove the chain cover (see Drive Chain Removal/Installation
in the Final Drive chapter).
Rotate the rear wheel to inspect the drive chain for damaged
rollers, and loose pins and links
If there is any irregularity, replace the drive chain.
Lubricate the drive chain if it appears dry.
...
Maintenance and adjustment
The maintenance and adjustments outlined in this chapter must be carried
out in
accordance with the Periodic Maintenance Chart to keep the motorcycle in good
running condition. The initial maintenance is vitally important and must not be
neglected.
With a basic knowledge of mechanics and the ...