Switch for Single-Headlight-Off
A little while ago, in order to provide more electrical power for my Gerbings jacket liner and heater grips, I followed the logical suggestions that I had read here about turning off one headlight via a switch. Because my morning commute is always in the dark (58 miles one way), I use my high beam quite a bit. Accordingly, I reasoned that the sensible way to wire in a switch was to connect it to the right headlight's ground wire. Then, when I turn off the switch, I remove the ground and the right headlight should go off. In reality, when I turn off the switch the right headlight does not go completely out, but instead only gets quite a bit dimmer.
I figure the only way this can happen is that 1) the switch is not breaking contact 100%, or 2) the right headlight bulb is somehow alternately and partially grounded.
Any electrical gurus with any input on this?