If you choose to undertake repairs on your own Yamaha FZR 1000 then it will always be recommended to possess a Workshop Manual for reference just in case you want to know how you can remove a particular component including Drive Shaft and install it again in the correct manner.
Yamaha FZR 1000 Workshop Manuals provides special diagnostic guidelines with regards to your vehicle so if something is faulty it helps you identify what the situation is and how to fix it. You will be able to assess if you can do this yourself or in case the job is just too big you can still book your FZR 1000 in with a local friendly mechanic.
Yamaha FZR 1000 manual