If you choose to conduct repairs on your own Suzuki DR Z70 then it will always be recommended to have a Workshop Manual for a reference just in case you want to know simple methods to take out a certain component for example, the Dashboard and fit it again properly.
Suzuki DR Z70 Workshop Manuals will give specific diagnostic info for your vehicle therefore if something is faulty it can help you find out what the problem is and tips to repair it. You can then evaluate if this can be done on your own or that the job is too big you could book your DR Z70 into a decent friendly mechanic.
Suzuki DR Z70 manual