Skywing might be getting to the end of the line. Lot of trouble getting it to run properly and inspection is due.
Thinking of perhaps getting a Zace.
Main problem (Apart from fuel consumption, which’ll be high, but I don’t drive much) is that AFAIK it isn’t sold into any English speaking markets (Unless South Africa??..) so it might not be possible to get a workshop manual for it.
If anyone knows different I’d like to too.
As far as I know, there’s no Zace currently on sale in Taiwan, so are you looking at a used model?
The Zace itself was sold in quite a few countries under a number of names. Some of these are English speaking countries. The link gives you a list of the names in those countries, so you can start your search.
Searching for owners manuals or workshop manuals on the internet can be annoying because the results tend to be fake PDFs, as you’ve probably already discovered.