If you want to accomplish maintenance on your own Tomos SM 125 F then it is always a good idea to have a Workshop Manual to keep just for a guide just in case you need to know the best ways to strip off a certain part much like the Clutch and install it again efficiently.
Tomos SM 125 F Workshop Manuals can offer you exact diagnostic wisdom with regards to your car or truck so if something is not working it can help you work out what the problem is and methods to repair it. Then you are able to analyse if this can be done yourself or if ever the job is just too big you can make a booking for your SM 125 F right into a nearby garage.
Tomos SM 125 F manual