If you want to undertake fixes for your Sym GTS 125 then it will always be a great idea to possess a Workshop Manual to keep just for a guide in the event you need to know methods to take off a certain part including Gearbox and match it again properly.
Sym GTS 125 Workshop Manuals offers clear detailed diagnostic facts for the vehicle so if something is broken it helps you determine what the situation is and ways to fix it. After that you can analyse if this can be done yourself or that the job is just too big you can actually make a reservation for your GTS 125 right into a local friendly mechanic.
Sym GTS 125 manual