If you have to execute adjustments for your Suzuki GS 400 then it is always a great idea to have a Workshop Manual for a guide just in case you want to know the best way to remove a specific component including Door and install it again accordingly.
Suzuki GS 400 Workshop Manuals offer you special diagnostic wisdom for the car or truck so if something is not working it can help you ascertain what the issue is and easy methods to fix it. After that you can evaluate if this can be achieved by yourself or that the job is too big you can book your GS 400 in to a nearby friendly mechanic.
Suzuki GS 400 manual