If you choose to carry out auto repairs to your Veli ZQ 125 then it will always be a good idea to have a Workshop Manual for a reference in the event you want to know tips on how to strip off a particular component like the Door and install it again in the correct way.
Veli ZQ 125 Workshop Manuals offers you specific diagnostic guidelines on your vehicle so if something is broken it will help you find out what the situation is and methods to repair it. Then you are able to determine if this can be done on your own or if the job is too big you can actually make a reservation for your ZQ 125 into a local garage.
Veli ZQ 125 manual