If you want to undertake fixes for your Veli VL50QT 8 then it will always be a good idea to have a Workshop Manual to keep just for reference in case you need to know proven methods to take out a particular part such as the Exhaust and fit it again effectively.
Veli VL50QT 8 Workshop Manuals will give identifiable diagnostic information on your car therefore if something is not working it can help you understand what the problem is and the way to resolve it. Then you are able to determine if this can be done yourself or if the job is just too big you could make a booking for your VL50QT 8 in with a suitable mechanic.
Veli VL50QT 8 manual