If you wish to accomplish auto repairs to your Ducati 900 SS FE then it is always a good idea to have a Workshop Manual to use as reference in case that you want to know tips on how to take out a particular part for instance the Wheel Bearing and install it again in the right way.
Ducati 900 SS FE Workshop Manuals offers clear specific diagnostic guidelines for the car so if something is broken it will help you understand what the situation is and how you can correct it. After that you can assess if this can be achieved on your own or that the job is too big you could book your 900 SS FE right into a suitable friendly mechanic.
Ducati 900 SS FE manual