If you choose to execute repairs for your Kawasaki KZ 250 LTD then it is usually recommended to have access to a Workshop Manual for personal reference in the event you need to know simple methods to strip off a specific part much like the Drive Shaft and install it again adequately.
Kawasaki KZ 250 LTD Workshop Manuals can provide distinct diagnostic guides on your automobile so if something is wrong it will help you discover what the problem is and some ways to repair it. You will be able to analyse if this can be done on your own or in case the job is too big you could book your KZ 250 LTD in to a trusted garage.
Kawasaki KZ 250 LTD manual