If you want to do adjustments on your Suzuki GSR 400 ABS then it will always be a good idea to own a Workshop Manual to keep just for a guide if you want to know ways to remove a particular part for example Clutch and match it again correctly.
Suzuki GSR 400 ABS Workshop Manuals offers clear precise diagnostic information with regards to your car or truck so if something is broken it helps you understand what the situation is and methods to repair it. You can then determine if you can do this yourself or in the event the job is simply too big you can actually book your GSR 400 ABS into a nearby repair garage.
Suzuki GSR 400 ABS manual