I agree, Ruffus, it should work, or there should be a way to get it to work. Something on my scoot (or something I did, incorrectly) prevents this from working.
On my motorcycle and Kymco scooter all I had to do was swap in a led relay and everything worked perfectly. Not on this old Honda...the difference is my other two don't have front running lights like the Honda does.
I may look at some led bulbs that come with built in resistors in the future.
In my neverending quest to be more visible my next move may be to put in a superbright led headlight bulb in the Helix..I've seen it done on Helix and Elite 250s. I'm not concerned with the nighttime light spread as I don't ride at night. I'm more concerned with visibility to others.