Kawasaki Ninja Service Manual: Caliper Fluid Seal Damage

Kawasaki Ninja Service Manual / Brakes / Calipers / Caliper Fluid Seal Damage

The fluid seal (piston seal) [A] is placed around the piston to maintain clearance between the pad and the disc. If the seal is in a poor condition, it could lead the pad to wear excessively or the brake to drag, which may cause the temperature of the discs or the brake fluid to increase.

Caliper Fluid Seal Damage


Brake fluid leakage around the pad.

Brakes overheat.

Considerable difference in inner and outer pad wear.

Seal and piston are stuck together.

If the fluid seal is replaced, replace the dust seal [B] as well. Also, replace all seals every other time the pads are changed.

Front Caliper [C] Rear Caliper [D]

Caliper Fluid Seal Damage


Caliper Installation
Install the caliper and brake hose lower end. For the front caliper, be sure to install the collars [A]. Replace the washers on each side of hose fitting with new ones. Touch the brake ho ...

Rear Caliper Dust Boot and Friction Boot Damage
Check that the dust boot [A] and friction boot [B] are not cracked, worn, swollen, or otherwise damaged. If they show any damage, replace it. ...

Other materials:

Radiator Fan System
Fan Motor Inspection Remove the air cleaner housing (see Air Cleaner Housing Removal in the Fuel System (DFI) chapter). Disconnect the connector [A]. Using an auxiliary leads, supply battery power to the fan motor. If the fan does not rotate, the fan motor is defective and must be re ...

KIBS Troubleshooting Outline
When an abnormality in the system occurs, the ABS indicator light (LED) and KIBS indicator light (LED) light up and the KIBS warning symbol are displayed on the LCD (Liquid Crystal Display) to alert the rider. In addition, the nature of the fault is stored in the memory of the KIBS hydraulic uni ...

Stick Coil Removal
Remove the air cleaner housing (see Air Cleaner Housing Removal in the Fuel System (DFI) chapter). Disconnect the stick coil connectors [A]. Pull out the stick coils [B] upward. First, turn the stick coil by 90 degrees, and then pull it out by twisting the coil head to the left and righ ...