If you have to carry out maintenance tasks for your Suzuki DR 250 S then it is always a good idea to have access to a Workshop Manual to keep just for personal reference if perhaps you need to know proven methods to take out a particular component such as the Wheel and install it again efficiently.
Suzuki DR 250 S Workshop Manuals are able to offer exact diagnostic info for your vehicle therefore if something is faulty it helps you discover what the issue is and tips on how to resolve it. You can then determine if this can be achieved by yourself or in case the job is too big you can actually make a reservation for your DR 250 S right into a suitable repair garage.
Suzuki DR 250 S manual