If you have to conduct fixes for your KTM 640 LC4 Supermoto then it will always be a good idea to possess a Workshop Manual to keep just for personal reference in the event that you need to know how to take off a specific component like the Drive Shaft and match it again correctly.
KTM 640 LC4 Supermoto Workshop Manuals offer you exact diagnostic info on your vehicle therefore if something is broken it can help you determine what the situation is and easy methods to correct it. Then you are able to decide if you can do this yourself or if ever the job is simply too big you can still make a booking for your 640 LC4 Supermoto in with a suitable garage.
KTM 640 LC4 Supermoto manual