When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
Installing license plate bracket with the brake and running light. Do I need a extra brake light relay the bike Is a 1992 flhtc. Or does anyone have the factory Directions. That came with The part. Has anyone ever used this setup before
OK, it bugs me a little bit when somebody asks a question and gets no response.
So, since I know a little about electricity and electronics, but nothing about flhtc motorcycles, I'll give my opinion and let somebody who actually knows jump in with the correct info...
Looking at the pic, I think you're adding two extra lamps to your brake/running light circuits. The factory brake light uses a two-filament lamp, one for the running light and one for the brake light. I'm assuming the two extra lights also have a running light filament and a brake light filament.
The correct thing to do is figure out the amperage that will be added to both circuits with the added lamps. To do that you need to know the wattage/current of each filament of the added lamps and the current-carrying capability of the wiring in both of those circuits and see if the existing circuits will be OK. Not that easy to do, in my opinion.
Since most manufacturers tend to design in a pretty hefty safety margin to avoid expensive lawsuits due to electrical fires, I'd guess you could add two more lamps by tapping into the existing wiring for those circuits and both circuits will be fine. But I really don't know for sure.
Now let's sit back, sip our adult beverages, and let someone give us the real scoop.
.
Last edited by yellowstone kelly; Jul 26, 2019 at 09:34 PM.
Do you have two wires for each of the new lights? One should be for running lights, the other should be for brake lights. And it probably grounds through the socket/bracket to frame ground.
If both filaments are always on, it sounds like you've somehow got both filaments wired to the running lights circuit?
If wired correctly, both filaments should do exactly what the stock brake/running lamp does.
I tapped into the Existing wires. But both Bulb filaments stay on. Pretty sure I have the right wires. I looked through my factory wiring diagram.
Well....
There is no brake light relay on that bike.
What wires did you connect to, where are they, and what color are they?
Did you check these wires with a voltmeter to find out which one was run light, which one was brake light?
The brighter filament should be wired to the brake lamp circuit, the low power filament should be wired to the run light circuit, it doesn`t get any more basic than this.
Those circuits can easily handle the load of a couple of extra bulbs.
But, from a purely aesthetic standpoint....That thing is really ugly....sorry..
Last edited by Dan89FLSTC; Jul 27, 2019 at 01:41 PM.
Figured it out crossed wires thanks for all the help. If I wanna add led stop bulbs. Do I need a load Equalizer or are the 1157 led bulbs plug and play
7 Surprising Harley-Davidson Products that Are Not Motorcycles
Slideshow: The bar-and-shield logo shows up on far more than motorcycles, some of the company's most unexpected products have nothing to do with riding.
Slideshow: From the troubled AMF years to modern misfires, these bikes earned reputations for reliability issues, questionable engineering, or disappointing performance.
Crazy Bunderbike Build Looks Amazing, But Is It Impossible to Ride?
Slideshow: The Swiss custom shop has taken a Harley Softail and stretched it into something so long and low that it looks closer to a rolling sculpture than a conventional motorcycle.
Engraved Rebellion: Inside Bundnerbike's Glam Rock II
Slideshow: A standard cruiser becomes an intricate metal canvas in the hands of a Swiss custom house known for pushing Harley-Davidson platforms far beyond their factory brief.
Slideshow: Harley-Davidson's challenges aren't abstract; they show up in dropping shipments, shrinking dealer traffic, and strategic decisions that aren't yet translating into growth.
Extra rear brake relay
