If they appear damaged or deteriorated, replace them.

Balancer Adjustment
Torque LimiterRear Shock Absorber Scrapping
WARNINGPressurized nitrogen may explode when
heated.
The rear shock contains nitrogen gas. To avoid
an explosion, do not incinerate the shock body
without first releasing the nitrogen and removing
the shraeder valve.
Remove the rear shock absorber (see Rear Shock Ab ...
Intake Air Pressure Sensor #1 Removal
NOTICE
Never drop the intake air pressure sensor #1 especially
on a hard surface. Such a shock to the sensor
can damage it.
Remove:
Air Cleaner Housing (see Air Cleaner Housing Removal
in the Fuel System (DFI) chapter)
Intake Air Pressure Sensor #1 Connector [A]
Remove the intake air ...
Evaporative Emission Control System Inspection (CAL and SEA-B1 Models)
Inspect the canister as follows.
Remove the upper fairing assembly (see Upper Fairing
Assembly Removal in the Frame chapter).
Remove the canister [A].
Visually inspect the canister for cracks or other damage.
If the canister has any cracks or bad damage, replace it
with a new one.
NO ...