If you want to accomplish repairs to your Aprilia ETX 635 then it will always be a good plan to have a Workshop Manual to keep just for personal reference in case that you need to know the best ways to take out a certain component much like the Clutch and fit it again perfectly.
Aprilia ETX 635 Workshop Manuals will provide you with targeted diagnostic wisdom for your vehicle therefore if something is not working it helps you ascertain what the problem is and tips to make it better. After that you can determine if this can be achieved yourself or if the job is just too big it is possible to make a booking for your ETX 635 in with a nearby garage.
Aprilia ETX 635 manual