If you have to do maintenance tasks for your Jawa 250 then it is usually recommended to possess a Workshop Manual for reference in the event you want to know the way to take out a particular component such as the Brake Discs and match it again adequately.
Jawa 250 Workshop Manuals provide you with certain diagnostic guidelines on your automobile so if something is not working it can help you identify what the situation is and methods to make it better. Then you are able to determine if this can be done on your own or that the job is too big you can still book your 250 into a local garage.
Jawa 250 manual