If you choose to conduct repairs to your Husaberg FE 400 E then it is usually a good plan to have a Workshop Manual to use as reference if you want to know the right way to strip off a specific component for example the Exhaust and match it again correctly.
Husaberg FE 400 E Workshop Manuals will give specific diagnostic guidelines for your vehicle therefore if something is faulty it will help you figure out what the situation is and easy methods to correct it. Then you are able to decide if this can be done on your own or that the job is simply too big you could make a booking for your FE 400 E in to a nearby repair garage.
Husaberg FE 400 E manual