I purchased a 1979 EDEL 540 and I'm in desperate need of an owners manual, and parts. If anyone can help at all that'd be appreciated.
No idea if there ever was an owners manual for these boats. The best place to check is here: users.skynet.be/quovadis/index.htm
, currently listed in the 'links' section. A little extra effort if, like me, your French isn't so good. For parts, unique to this boat only, you will probably need to rely on your own creativity since they stopped making these things many years ago.