If you want to carry out repairs to your Suzuki GN 250 E then it is always recommended to have access to a Workshop Manual to keep just for reference in the event that you need to know the right way to strip off a specific part for example Exhaust and install it again the right way.
Suzuki GN 250 E Workshop Manuals provides detailed diagnostic information for your automobile therefore if something is broken it can help you determine what the issue is and tips on how to make it better. Then you are able to assess if this can be achieved on your own or that the job is simply too big you could make a reservation for your GN 250 E in with a local repair garage.
Suzuki GN 250 E manual