If you want to do auto repairs to your Husqvarna SM 125 S then it is usually a great idea to have a Workshop Manual to keep just for reference if perhaps you want to know easy methods to strip off a particular part including Drive Shaft and match it again perfectly.
Husqvarna SM 125 S Workshop Manuals offers you certain diagnostic wisdom with regards to your car or truck therefore if something is playing up it helps you discover what the problem is and how to resolve it. After that you can evaluate if you can do this on your own or if the job is simply too big it is possible to book your SM 125 S in to a nearby repair garage.
Husqvarna SM 125 S manual