If you want to execute maintenance tasks on your MZ 125 SM Blizzard then it will always be recommended to have access to a Workshop Manual to use as a reference in the event you want to know techniques to remove a particular part like the Clutch and install it again adequately.
MZ 125 SM Blizzard Workshop Manuals can offer you specific diagnostic guidelines with regards to your car therefore if something is broken it will help you ascertain what the situation is and some ways to fix it. You can then analyse if this can be achieved yourself or if ever the job is simply too big you are able to make a booking for your 125 SM Blizzard right into a suitable repair garage.
MZ 125 SM Blizzard manual