If you wish to do fixes on your Bultaco Metralla 250 then it is always a good idea to possess a Workshop Manual to keep just for reference in case you need to know the best way to take off a specific component like the Brake Discs and fit it again adequately.
Bultaco Metralla 250 Workshop Manuals can provide distinct diagnostic info on your automobile therefore if something is wrong it helps you determine what the issue is and tips to fix it. You can then analyse if this can be achieved on your own or if the job is too big you can book your Metralla 250 into a local garage.
Bultaco Metralla 250 manual