If you wish to do adjustments for your Yamaha FZR 1000 then it will always be a good idea to have access to a Workshop Manual for a reference if you want to know simple methods to take off a certain component such as the Drive Shaft and fit it again successfully.
Yamaha FZR 1000 Workshop Manuals will give you special diagnostic guidelines for your vehicle so if something is broken it will help you figure out what the situation is and the best way to resolve it. After that you can assess if this can be achieved yourself or in the event the job is simply too big you can still make a booking for your FZR 1000 into a decent mechanic.
Yamaha FZR 1000 manual