If you choose to accomplish maintenance tasks on your own Suzuki AN 125 then it will always be recommended to own a Workshop Manual to keep just for personal reference if you want to know proven methods to strip off a certain component much like the Wheel Bearing and install it again efficiently.
Suzuki AN 125 Workshop Manuals can offer you unique diagnostic wisdom for your vehicle so if something is not working it helps you discover what the problem is and methods to fix it. You will be able to evaluate if this can be achieved yourself or in case the job is simply too big you could book your AN 125 in with a nearby friendly mechanic.
Suzuki AN 125 manual