If you want to perform repairs for your Puch M 125 then it will always be a good idea to own a Workshop Manual to keep just for a guide if perhaps you want to know methods to take off a certain part for example, the Dashboard and match it again accordingly.
Puch M 125 Workshop Manuals will give certain diagnostic info for the car therefore if something is broken it can help you determine what the problem is and easy methods to resolve it. After that you can evaluate if you can do this yourself or that the job is simply too big you could make a reservation for your M 125 into a nearby mechanic.
Puch M 125 manual