If you want to carry out maintenance tasks on your Kawasaki KX 250 F then it will always be a good idea to own a Workshop Manual to keep just for reference should you want to know methods to strip off a particular part including Gearbox and match it again adequately.
Kawasaki KX 250 F Workshop Manuals will give you special diagnostic guides with regards to your automobile so if something is faulty it can help you discover what the situation is and some ways to fix it. You can then analyse if this can be achieved on your own or if ever the job is too big you could make a booking for your KX 250 F right into a local mechanic.
Kawasaki KX 250 F manual