Yea they are pretty cool bikes. I had a '84 XR500 back in the eighties, if memory serves me correct it had twin carbs. I think the term "dual purpose" was the name the older XLs used to be called. It is neat to see them on the road, although not very often anymore. Most of them are probably in the scrap heap or in various states of decay leaning against a pile of stuff.
Nice bike Gregster, cool thread and lets see some more pics all you XL owners!
Edit: I just realized that I was looking at a brochure pic, but I have seen a few pics of your bike on other threads! Very cool nonetheless.