If you have to execute maintenance tasks for your Hyosung T250R then it will always be recommended to have access to a Workshop Manual to use as personal reference just in case you need to know easy methods to take off a particular part for example, the Exhaust and match it again the right way.
Hyosung T250R Workshop Manuals offers clear identifiable diagnostic details on your vehicle therefore if something is not working it helps you identify what the issue is and tips to make it better. You can then determine if this can be done by yourself or if the job is too big you can actually book your T250R right into a trusted repair garage.
Hyosung T250R manual