If you have to carry out maintenance on your own Suzuki DR Z 400 then it will always be a good idea to have access to a Workshop Manual to use as reference just in case you need to know easy methods to take off a specific part for instance the Wheel Bearing and install it again the right way.
Suzuki DR Z 400 Workshop Manuals offer you specific diagnostic guidelines on your automobile therefore if something is broken it will help you determine what the situation is and the way to make it better. After that you can evaluate if this can be achieved by yourself or in case the job is simply too big you could make a booking for your DR Z 400 right into a trusted repair garage.
Suzuki DR Z 400 manual