If they appear damaged or deteriorated, replace them.

Balancer Adjustment
Torque LimiterStem, Stem Bearing Installation
Replace the bearing outer races with new ones.
Drive them into the head pipe at the same time.
Special Tools - Head Pipe Outer Race Press Shaft [A]:
57001-1075
Head Pipe Outer Race Driver,
55 [B]: 57001
-1446 or Bearing Driver Set: 57001-1129
Apply grease to the outer races.
...
Gear Position Switch Inspection
NOTE
Be sure the transmission and external shift mechanism
are good condition.
Remove the fuel tank (see Fuel Tank Removal in the Fuel
System (DFI) chapter).
Disconnect the connector [A].
Set the hand tester [A] to the × 1 kΩ or × 100 Ω range
and connect i ...
S-KTRC Warning Indicator Light
The yellow warning indicator light in
the meter unit functions as the S-KTRC
warning indicator light. The yellow
warning indicator light and all S-KTRC
mode indicators blink whenever there
is a malfunction in the S-KTRC system.
At this time, the S-KTRC system does
not function.
If the ye ...