If you choose to undertake maintenance for your Diamo Velux 250 then it is always a good plan to own a Workshop Manual to keep just for reference if perhaps you want to know ways to take off a particular part for example, the Brake Discs and fit it again in the correct manner.
Diamo Velux 250 Workshop Manuals can offer you exact diagnostic info with regards to your car so if something is faulty it will help you figure out what the issue is and methods to resolve it. Then you are able to analyse if you can do this yourself or if the job is just too big you could make a booking for your Velux 250 into a nearby car garage.
Diamo Velux 250 manual