The yellow light functions as the electronic steering damper warning indicator.
The light and warning symbol "ESD" go on if there is a malfunction in the electronic steering damper system.
However, this could also be caused by trouble with the charging system (e.g.
battery). If the warning light comes on, check the battery to be sure it is fully charged. If the battery is fully charged and the warning light still goes on, have the electronic steering damper system checked by an authorized Kawasaki dealer.
The electronic steering damper system maintains the last damping force setting if it fails.

A. Yellow Warning Indicator Light
B. Electronic Steering Damper Warning Symbol
KIBS Warning Indicator Light (For models equipped
with KIBS)
ABS Indicator Light (For models equipped with KIBS)Gear Position Switch Removal
Remove:
Oil Pump (see Oil pump Removal in the Engine Lubrication
System chapter)
Engine Sprocket (see Engine Sprocket Removal in the
Final Drive chapter)
Fuel Tank (see Fuel Tank Removal in the Fuel System
(DFI) chapter)
Disconnect the connector [A].
Remove:
Screws [A]
...
KIBS Hydraulic Unit Installation
NOTICE
Brake fluid quickly ruins painted plastic surfaces;
any spilled fluid should be completely washed away
immediately.
Install the KIBS hydraulic unit together with the bracket.
Before installing the brake pipe, check to see that there is
no damage on the threads of the brake pipe joi ...
Spring Preload Adjustment
The spring preload adjuster is located
at the lower end of each front fork leg
and can be adjusted.
To increase spring preload and
stiffen the suspension, turn the
preload adjuster clockwise with a
hexagon wrench.
To decrease preload and soften the
suspension, turn the preload adjust ...