If you want to execute repairs on your Kawasaki ZXR 400 then it is always a good idea to possess a Workshop Manual to keep just for reference if you need to know simple methods to take out a specific component such as the Wheel Bearing and match it again safely.
Kawasaki ZXR 400 Workshop Manuals offer you special diagnostic information for your vehicle so if something is broken it will help you identify what the issue is and methods to correct it. Then you are able to assess if this can be done by yourself or if ever the job is just too big you are able to make a reservation for your ZXR 400 in with a trusted friendly mechanic.
Kawasaki ZXR 400 manual