If you want to perform maintenance tasks for your Beta Eikon 4T 125 then it will always be a good plan to possess a Workshop Manual for personal reference in case you want to know techniques to remove a certain component much like the Drive Shaft and install it again correctly.
Beta Eikon 4T 125 Workshop Manuals offers you distinct diagnostic guides for your vehicle so if something is playing up it helps you ascertain what the problem is and the way to repair it. After that you can decide if this can be achieved yourself or that the job is just too big you can actually book your Eikon 4T 125 into a decent mechanic.
Beta Eikon 4T 125 manual