If you want to carry out adjustments on your own Tomos ATX 50C then it is always a good idea to own a Workshop Manual for a guide just in case you want to know easy methods to strip off a specific component including Drive Shaft and fit it again in the correct manner.
Tomos ATX 50C Workshop Manuals will give you identifiable diagnostic info for the car therefore if something is broken it will help you understand what the issue is and ways to resolve it. Then you are able to decide if this can be achieved yourself or in the event the job is too big it is possible to make a reservation for your ATX 50C in to a decent car garage.
Tomos ATX 50C manual