...More on the headlight configuration for the bike...
I wanted to have high and low beams work with the Buell setup, so I retrofitted some H4 bulbs in place of the H7 that come with the XB9 light. I'm not sure if it's going to work or not, because the reflectors in the Buell headlight unit are not really designed for H4 bulbs. I haven't tested the light at night yet, but we'll see. I might end up scrapping this altogether & working up something else. Anyway, here it is now, and I'm trying out different ideas for a front bikini fairing / windshield. I'm considering trimming the factory Yamaha fairing which I think will look the best once finished. But I'm also building a small fairing out of some sheet metal.

Fitting Buell XB9 headlights

I got a Buell XB9 headlight assembly from the local harley dealer. I'm in the process of installing the new dual headlights in place of the original. I found that the tube bracket Yamaha uses to mount the original headlamp and plastic cowling fits "almost" perfectly with the Buell setup. I just welded some small tabs to it on the 2 center cowl mount bracket and bolted up the new lights.

The only problem is the wiring. So far, I haven't gotten High-Low beams to work. I've only gotten it to work with both lights on all the time. This isn't too much of a concern for me, because I don't mind being extra visible. I may spend some more time on it trying to get it to work, but I'm trying to avoid re-wiring the whole circuit.