If you wish to do adjustments on your Husqvarna WR 250 then it is usually recommended to own a Workshop Manual to use as personal reference in the event that you want to know the best ways to remove a particular part such as the Door and match it again adequately.
Husqvarna WR 250 Workshop Manuals are able to offer specified diagnostic facts with regards to your car so if something is broken it can help you understand what the issue is and tips to make it better. You will be able to analyse if this can be done yourself or in case the job is too big you could make a reservation for your WR 250 in to a local car garage.
Husqvarna WR 250 manual