If you want to perform maintenance on your own Suzuki VS 800 GL Intruder then it is usually recommended to own a Workshop Manual to use as personal reference in case you want to know the best way to strip off a particular part for example the Drive Shaft and fit it again in the correct way.
Suzuki VS 800 GL Intruder Workshop Manuals offers clear exact diagnostic facts for your car therefore if something is wrong it will help you understand what the situation is and the best way to correct it. You can then analyse if this can be achieved by yourself or in case the job is simply too big you can make a reservation for your VS 800 GL Intruder in with a local mechanic.
Suzuki VS 800 GL Intruder manual