An important update regarding the horn body position:
When I installed the horn body, the bike was on the center stand. I did not take into account that when the bike was on its wheels with rider weight (i.e., forks compressed), the left brake line goes from straight to bowed outward. Duh. As a result, my "perfect" location for the horn body wasn't, as the bowed line would catch on its way past a edge of the horn body.
The pics below show where I relocated the horn further down the inner side panel. The horn body is still not visible from the side of the bike. The new hole for the mounting bolt is pretty close to an adjacent ridge in the panel, so the fender washer cannot be used.
When I installed the horn body, the bike was on the center stand. I did not take into account that when the bike was on its wheels with rider weight (i.e., forks compressed), the left brake line goes from straight to bowed outward. Duh. As a result, my "perfect" location for the horn body wasn't, as the bowed line would catch on its way past a edge of the horn body.
The pics below show where I relocated the horn further down the inner side panel. The horn body is still not visible from the side of the bike. The new hole for the mounting bolt is pretty close to an adjacent ridge in the panel, so the fender washer cannot be used.