If you choose to do maintenance tasks on your UM Venus 110 then it will always be a good idea to have access to a Workshop Manual for reference in the event you need to know methods to remove a specific component for example the Drive Shaft and fit it again safely.
UM Venus 110 Workshop Manuals are able to offer detailed diagnostic facts with regards to your automobile so if something is wrong it will help you understand what the issue is and how to repair it. Then you are able to evaluate if this can be achieved by yourself or that the job is simply too big you could book your Venus 110 in to a trusted garage.
UM Venus 110 manual