If you have to perform auto repairs on your own Suzuki GSX 1200 then it is usually a great idea to have access to a Workshop Manual to keep just for personal reference if you need to know how to take off a specific part like the Wheel and install it again efficiently.
Suzuki GSX 1200 Workshop Manuals are able to offer particular diagnostic guidelines on your car or truck so if something is not working it will help you work out what the issue is and the way to resolve it. After that you can analyse if you can do this by yourself or in case the job is simply too big you could book your GSX 1200 in with a nearby repair garage.
Suzuki GSX 1200 manual