If you want to accomplish fixes on your Suzuki Boulevard M109R2 then it is always a good plan to own a Workshop Manual for reference if you want to know proven methods to remove a certain component for instance the Door and fit it again accurately.
Suzuki Boulevard M109R2 Workshop Manuals will give you exact diagnostic wisdom for the car so if something is faulty it can help you identify what the problem is and tips to repair it. After that you can determine if this can be achieved on your own or that the job is just too big you can actually book your Boulevard M109R2 in to a suitable repair garage.
Suzuki Boulevard M109R2 manual