From what I know about Huskys, they may had been legal from the factory in Europe but not in North America. Unless you put on the turn signals etc. I heard that the bikes were shipped with all the street legal stuff, but its not put on them.
Here's a link to a 2002 400.
http://www.motorcycledaily.com/24apr...2002te400.html
Here's a link to a Husky catalog, it goes back to 1988.
https://www.halls-cycles.com/Catalog/Halls-Cycles-Husqvarna.aspx