If you want to undertake maintenance on your Gilera Nordwest then it is always recommended to have access to a Workshop Manual to use as reference if perhaps you need to know techniques to strip off a specific component for instance the Door and match it again efficiently.
Gilera Nordwest Workshop Manuals provide you with exact diagnostic details for your car so if something is playing up it will help you identify what the problem is and how you can make it better. After that you can evaluate if this can be achieved on your own or if ever the job is simply too big you are able to book your Nordwest in to a local garage.
Gilera Nordwest manual