As the tire tread wears down, the tire becomes more susceptible to puncture and failure. An accepted estimate is that 90% of all tire failures occur during the last 10% of tread life (90% worn). So it is false economy and unsafe to use the tires until they are bald.
If any measurement is less than the service limit, replace the tire (see Tire Removal/Installation in the Wheels/Tires chapter).

Tread Depth Standard:
Front 3.6 mm (0.14 in.)
Rear 5.3 mm (0.21 in.)
Service Limit:
Front 1 mm (0.04 in.) (AT, CH, DE) 1.6 mm (0.06 in.)
Rear 2 mm (0.08 in.) (Up to 130 km/h (80 mph)) 3 mm (0.12 in.) (Over 130 km/h (80 mph))
| WARNING Some replacement tires may adversely affect handling and cause an accident resulting in serious injury or death. To ensure proper handling and stability, use only the recommended standard tires for replacement, inflated to the standard pressure. |
NOTE
Wheel/Tire Damage Inspection
Wheel Bearing Damage InspectionStopping the Motorcycle in an Emergency
Your Kawasaki Motorcycle has been
designed and manufactured to provide
you optimum safety and convenience.
However, in order to fully benefit
from Kawasaki’s safety engineering
and craftsmanship, it is essential that
you, the owner and operator, properly
maintain your motorcycle and becom ...
Brake Pedal Position Adjustment
NOTE
Usually it is not necessary to adjust the pedal position,
but always adjust it when push rod locknut has been
loosened.
Loosen the locknut [A] and turn the push rod with the hex
head [B] to achieve the correct pedal position.
If the length [C] shown is 69 ±1 mm (2.7 ±0.04 in.), th ...
Fuel Reserve Switch Inspection
Fill the fuel tank with fuel and close the fuel tank cap.
Remove the front seat (see Front Seat Removal in the
Frame chapter).
Disconnect the fuel pump lead connector [A].
Connect the test light [A] (12 V 3.4 W bulb in a socket
with leads) and the 12 V battery [B] to the fuel pu ...