If you want to carry out auto repairs on your own MZ SM Gangsta then it is usually recommended to have a Workshop Manual to use as reference in case you need to know ways to take off a particular component for example Exhaust and install it again successfully.
MZ SM Gangsta Workshop Manuals offer you specified diagnostic guides for your automobile therefore if something is not working it can help you work out what the situation is and how you can resolve it. You can then decide if this can be done on your own or that the job is too big you could book your SM Gangsta right into a suitable mechanic.
MZ SM Gangsta manual