Some light wiring help. Affirmation.

[GilaMinumBeer]

The image below was copied from "Road to rod", page 33, as posted by Aced It.



Note the switch at the top of the image. This is the turn signal muti-position switch and is tethered to the horn using a common power circuit tracing back to a common 10A fuse (powers turn circuit, horn, and tail running light)(a separate 10A fuse for the headlight circuit ties into the circuit for running lights at front). [disclaimer: wiring color for the image "may" be different as I am applying color scheme from an 04 VT750C A schematic to describe the circuits]

The switch operates as such;

-Right signal: Power through relay to Right 21w filament (blinker) (Grey in/Light Blue out). No power to Right 5w filament (running light)(Light Blue/White stripe). Power to Left 5w filament (running light)(Orange/White stripe) via Brown power circuit wire.

-Left signal: Power through relay to Left 21w filament (Blinker)(Grey in/ Orange Out). No power to Left 5w filament(Running Light)(Orange/White Stripe). Power to right 5w filament (Running Light)(Light Blue/White Stripe) via Brown power circuit wire.

-No signal: Power in through Brown wire. BOTH 5w filaments (running lights) on via Orange/White Stripe and Light Blue/white Stripe wires.


Similar to Aced It, I am clearing off my handle bars of the controls and have not figured out how to remount the OEM switch in a way that I like. Thus, am looking at replacing this switch with a standard center off toggle. Doing this will eliminate the complex (IMO) circuit via switch that controls running light behavior depandant on switch position rendering running lights inoperable .... unless ...

Is it feasible to simply tie the wires (O/W and Lb/W) for the 5w running light filament directly to the power wire (Br) so that the 5w filaments are always on even when a 21w filament is blinking?

I suppose the rationale behind this circuit is to conserve power through the bulb and minimalize heat since otherwise both filaments would be burning at the same time.

I do realize that doing this may very well shorten the lifespan of each bulb but, will it work?

Any thoughts would be appreciated.

[Scrapdog2grand]

It will work, but as all the obvious you stated.
I think that the running light portion of the bulb dimming when you have the turn signal on makes it much more noticable.
if it where on all the time, you would just have the lighing output increase some on that lens when the turn signal were on, and may not be a good idea. It may go un-noticed by another driver.

I am sure you can rig up something with a couple sets of diodes, and a thought out plan.

[GilaMinumBeer]

Originally Posted by Scrapdog2grand

I am sure you can rig up something with a couple sets of diodes, and a thought out plan.

Hey now, whoa, whoa, whoa. Sounds like you are accusing me of being more intelligent than I are. Took me a dang half hour to trace through the wiring schematic to figure that dern switch out. After that, I'm spent.

I wouldn't have the first clue on how to wire in diodes to emulate the OEM switch.

Hell, I can't even come up with a good solution to remounting the dang original.

Thanks for the response tho'.

[Dropkick_pride]

I'm looking at this issue this winter ascwell and would love to see what you do with the switches...