If you need to accomplish adjustments on your Skyteam V Raptor 125 then it will always be a good idea to own a Workshop Manual to use as a reference in case that you need to know how you can remove a particular part much like the Gearbox and fit it again efficiently.
Skyteam V Raptor 125 Workshop Manuals offer you particular diagnostic info on your car so if something is faulty it helps you identify what the problem is and the best way to resolve it. You can then decide if this can be achieved yourself or if the job is too big you could book your V Raptor 125 into a suitable car garage.
Skyteam V Raptor 125 manual