If you wish to undertake adjustments on your own Suzuki GR 650 X then it will always be a great idea to own a Workshop Manual to use as reference in the event that you need to know how to strip off a certain part including Brake Discs and match it again accordingly.
Suzuki GR 650 X Workshop Manuals are able to offer exact diagnostic guides with regards to your automobile therefore if something is faulty it helps you find out what the issue is and the way to resolve it. You will be able to determine if this can be achieved yourself or if the job is too big you could book your GR 650 X into a local repair garage.
Suzuki GR 650 X manual