I don't know what year the Dahon Stowaway is, but here is a link to the 1990 Dahon user manual. It indicates 250 pound weight limit.

http://dahon.com/wp-content/uploads/...ers-manual.pdf

I bought an old Dahon III with 16" wheels a while back. I didn't ride it long distances, but it was a blast on short rides. I gave it t a friend and have since bought a few other folders. I carry my Crane in the trunk because I work on the road a lot so I always have it if I have a chance to ride.