If you want to undertake maintenance tasks to your Kymco Grand Dink 250 then it will always be recommended to have a Workshop Manual to keep just for personal reference if you want to know the way to take out a certain component including Exhaust and install it again accurately.
Kymco Grand Dink 250 Workshop Manuals offer you distinct diagnostic guides for your car therefore if something is broken it helps you identify what the issue is and the way to correct it. Then you are able to determine if you can do this on your own or if the job is just too big you could book your Grand Dink 250 into a nearby repair garage.
Kymco Grand Dink 250 manual