If you choose to do repairs for your Kawasaki ZZR 400 then it will always be a good plan to own a Workshop Manual to use as a reference just in case you want to know techniques to take off a certain part for example, the Wheel Bearing and match it again effectively.
Kawasaki ZZR 400 Workshop Manuals provide you with distinct diagnostic details for your automobile therefore if something is wrong it helps you figure out what the situation is and some ways to correct it. Then you are able to evaluate if this can be done yourself or that the job is too big you can actually make a booking for your ZZR 400 into a trusted friendly mechanic.
Kawasaki ZZR 400 manual