If you have to undertake maintenance tasks on your own Veli ZQ 125 then it is always a good plan to own a Workshop Manual for reference in the event you need to know techniques to remove a specific part such as the Exhaust and install it again properly.
Veli ZQ 125 Workshop Manuals will give special diagnostic information for your car or truck therefore if something is broken it can help you work out what the problem is and the best way to resolve it. You will be able to decide if this can be done yourself or in the event the job is simply too big you could make a booking for your ZQ 125 in to a trusted garage.
Veli ZQ 125 manual