If you want to conduct repairs on your own Vertemati E 501 Enduro then it is usually recommended to own a Workshop Manual for personal reference should you want to know ways to take out a specific part including Gearbox and install it again in the right way.
Vertemati E 501 Enduro Workshop Manuals provides certain diagnostic information with regards to your vehicle so if something is broken it can help you identify what the issue is and methods to repair it. Then you are able to decide if this can be done yourself or that the job is too big it is possible to book your E 501 Enduro in to a trusted garage.
Vertemati E 501 Enduro manual