If you need to accomplish maintenance for your Izuka S50 then it is always a good plan to possess a Workshop Manual to use as a guide in case you want to know the best ways to remove a certain part including Door and match it again correctly.
Izuka S50 Workshop Manuals are able to offer identifiable diagnostic info for the car or truck so if something is playing up it can help you ascertain what the problem is and tips to resolve it. After that you can determine if you can do this by yourself or that the job is too big you could make a booking for your S50 in to a decent repair garage.
Izuka S50 manual