If you want to undertake auto repairs on your Suzuki RM Z 450 then it is usually a good idea to own a Workshop Manual for a reference should you need to know the way to take off a specific component for example, the Drive Shaft and match it again in the right way.
Suzuki RM Z 450 Workshop Manuals will give you specified diagnostic info for the vehicle therefore if something is playing up it helps you determine what the issue is and the way to repair it. You will be able to determine if this can be achieved by yourself or in case the job is too big it is possible to make a booking for your RM Z 450 into a trusted garage.
Suzuki RM Z 450 manual