Wednesday, April 04, 2007
More On Auxiliary Lights
I went and rewired the auxiliary lights through the High Beam switch and eliminated the separate switch all together. I studied the electrical schematic for the Yamaha Vision and found that the yellow wire running from the high beam switch on the left handle bar runs from the switch to the headlight and then back to the high beam indicator light under the speedometer. Unfortunately, the indicator light has a low voltage draw to illuminate the blue indicator lamp. I devised a simple solution...
Throw a relay into the mix and things should work great (and the relay costs less than $3.00). The four prong relay was exceptionally easy to install. One of the prongs goes to ground, one gets spliced to the yellow wire between the headlight and the blue indicator light, one prong get attached to the positive side of the battery and the last prong goes to the "hot" side of the auxiliary lighting circuit. The negative side of the auxiliary lighting circuit is already attached to a ground from the initial installation.
Let's see... Turn the ignition on, check. Start the bike, check. Switch the headlight from low beam to high beam, headlight goes to high beam and.... the auxiliary lights come on, perfectly! Total time to rewire the auxiliary lights through the headlight switch, 15 minutes. Time to go for a ride!