If you choose to conduct maintenance to your Honda CBF125F then it will always be recommended to have access to a Workshop Manual to use as a reference should you need to know tips to strip off a specific part including Drive Shaft and install it again in the correct manner.
Honda CBF125F Workshop Manuals will give unique diagnostic details for your car therefore if something is broken it will help you identify what the problem is and tips on how to repair it. You can then decide if this can be done yourself or if the job is too big you can book your CBF125F into a nearby mechanic.
Honda CBF125F manual