If you want to execute maintenance tasks for your BMW K1200 GT then it is always a good idea to possess a Workshop Manual to use as reference if you want to know the best ways to take out a certain part for instance the Door and install it again correctly.
BMW K1200 GT Workshop Manuals gives you exact diagnostic information with regards to your car therefore if something is playing up it will help you find out what the problem is and easy methods to correct it. Then you are able to evaluate if you can do this yourself or if ever the job is just too big you can actually make a booking for your K1200 GT in with a suitable friendly mechanic.
BMW K1200 GT manual