If you have to accomplish auto repairs to your Kawasaki Ninja 250R then it is always a good idea to have access to a Workshop Manual for a reference in case that you need to know techniques to take off a specific part for example, the Clutch and fit it again in the correct way.
Kawasaki Ninja 250R Workshop Manuals are able to offer targeted diagnostic info for your vehicle so if something is wrong it will help you find out what the situation is and methods to correct it. After that you can analyse if this can be achieved yourself or if ever the job is simply too big you can book your Ninja 250R right into a trusted repair garage.
Kawasaki Ninja 250R manual