If you want to do adjustments on your Veli Vl250GY then it is usually recommended to own a Workshop Manual to keep just for personal reference in the event that you need to know proven methods to remove a particular component including Clutch and fit it again accordingly.
Veli Vl250GY Workshop Manuals provides targeted diagnostic details with regards to your vehicle therefore if something is not working it helps you work out what the problem is and methods to make it better. Then you are able to determine if this can be done by yourself or that the job is too big you are able to make a reservation for your Vl250GY right into a trusted friendly mechanic.
Veli Vl250GY manual