If you need to execute adjustments on your own Puch GS 250 HF then it is usually recommended to have access to a Workshop Manual for personal reference should you need to know methods to take out a particular part for example, the Drive Shaft and match it again in the correct manner.
Puch GS 250 HF Workshop Manuals will give you identifiable diagnostic wisdom with regards to your automobile therefore if something is playing up it will help you determine what the problem is and tips to resolve it. After that you can decide if this can be achieved by yourself or that the job is simply too big you can actually make a booking for your GS 250 HF in with a local car garage.
Puch GS 250 HF manual