I think the guy you bought yours from swapped engines with a K0 (I do not believe the factory would have offered options like that then, maybe not now either), which would explain how you got it the way you did... and you are right, they did release them on August 15th, 1969 - but here in Florida, where I have lived since '61, the titles at motorcycle dealerships changed to the new model year in September of every year, so that explains why I never saw a '69 SL350K0... that would have lasted 2 weeks, likely a very small number would have sold. How rare would it be to have one of them...Hey Tom - CMSNL says that they did. And my motor is an SL350E-1000XXX which matches that
Yeah, I was working at Barney's Outboard Marine (Mercury dealer) and Honda Motorcycles in the summer before my senior year in school and bought a new CL450K4. The title clerk at the time asked me if I wanted her to hold the title paperwork until after Sept. 1 so it would be a '72 (I had bought it in late July or early August of '71, one of the two) and of course, I said yes... looks better for re-sale, which is what I did a lot of back then going from smaller to larger while living at home and expenses were low.Yeah Tom, the PO was a shady sorta person. I knew the whole story about a "special order" was just hooey but wanted to confirm my suspicions.
As for the Florida titled '69 SL350s that's funny. I never even thought about that.