If you need to conduct fixes on your own Honda NSR 125 R then it will always be a great idea to have a Workshop Manual to keep just for reference if you want to know methods to take out a particular component like the Drive Shaft and install it again in the correct manner.
Honda NSR 125 R Workshop Manuals will give special diagnostic guides with regards to your vehicle therefore if something is not working it helps you work out what the issue is and tips to resolve it. Then you are able to evaluate if this can be done by yourself or in case the job is simply too big you can still book your NSR 125 R in with a decent repair garage.
Honda NSR 125 R manual