If you choose to carry out fixes on your own Veli VL200GY then it is usually recommended to have a Workshop Manual to use as a guide in the event that you need to know the best way to take off a certain part for instance the Wheel and fit it again appropriately.
Veli VL200GY Workshop Manuals can offer you particular diagnostic info for your car or truck so if something is not working it can help you discover what the issue is and easy methods to correct it. After that you can assess if you can do this by yourself or if the job is just too big you can still book your VL200GY right into a decent mechanic.
Veli VL200GY manual