If you want to do auto repairs on your own Kymco Vitality then it will always be recommended to possess a Workshop Manual to keep just for personal reference in case you need to know the best way to take off a specific component for instance the Gearbox and match it again adequately.
Kymco Vitality Workshop Manuals will give specific diagnostic wisdom on your vehicle therefore if something is faulty it helps you figure out what the issue is and the way to repair it. You will be able to assess if this can be achieved yourself or in case the job is simply too big you can still make a reservation for your Vitality in with a trusted repair garage.
Kymco Vitality manual