If you have to undertake adjustments for your Ducati 900 S 2 then it is usually recommended to have a Workshop Manual to keep just for reference in the event you need to know simple methods to take out a specific part for instance the Brake Pads and match it again efficiently.
Ducati 900 S 2 Workshop Manuals can offer you identifiable diagnostic wisdom on your car so if something is playing up it will help you figure out what the issue is and the best way to make it better. You can then determine if this can be done by yourself or in case the job is too big you can book your 900 S 2 into a suitable repair garage.
Ducati 900 S 2 manual