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Discussion Starter #1 (Edited)
It is still a few weeks off till I get a chance to install my OEM light bar, but I have a question on how to wire it up. The directions with the light say to tap the hot wire into the low side of the headlight. While that would work, I would like the bar to be on all the time and shut off with the key. Who has done this and how did you wire it in? Also, with it being on with the high beam, will it draw to much and run the battery down? I am not very good at understanding wiring so please make it simple if possible. Thank you.

Also if there is any opinions on the bar only being on with the low beams, I would like to hear them.
 

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The reason that the instructions are written to install the light bar that way, is that in most states (that I am aware of) it is actually not permitted to have the driving light on with the high beam. (which just seems like a stupid, stupid law to me) SO, technically, If you had it hooked up to be always on with both High and low beams, you *shouldn't* pass inspection (if your state has inceptions that is)

I have mine setup to be able to work both ways.
1. per instructions to only come on with the low beam for when I take it in for inspection.
2. after I get i home from inspection, I open the headlight bucket and move one wire from the low beam wire to a wire tapped into the turn signal running light.

Since the wire I'm moving is only used to activate a relay, I don't have to worry about the draw on the headlight or the turn signal circuits. The light bar gets it actual power from the accessory line.

I imagine that the light bar for the Classic is set up to run the same way?

As far as total power draw with High beams, I haven't had any issues. I do about 50% of my riding at night for my commute to work down a very dark highway with little traffic during the hours I travel, so my high beam is on a lot.
 

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Pin 30/51 is hooked to the positive battery terminal thru a fuse.

Pin 86 is the positive trigger voltage to the coil (control) circuit.

Pin 85 is the negative (ground) voltage to the coil.
 

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If you are concerned about the amp draw. I was and this is how I wired mine up. If you take watts divided by volts = amps. So two 25w lamps in your light bar 50w/12v=4.16 amps. Then 65w high-beam/12v= 5.41 amps So in theory with both on you should be drawing 9.57 amps on a 10 amp fuse is to close for me. That is why I used a relay. Which I picked up at my local auto parts store. Headlight stays on it own fuse and light bar works on the accessory fuse.

Now what does the above mean in simple terms.

Take the ground wire from light bar and plug it into the ground in the headlight bucket. Also terminal 85 will go to ground on the relay.

Take the power wire on the light bar and hook it up to 87 on the relay. I am assuming the light bar already has a switch on it and is already wired up.

terminal 30/51 will go straight to the positive already in headlight bucket. accessory fuse.

then 86 will connect to what ever wire you choose. depending on how you want the lights on. low beam, high beam, running light, up to you.

So wiring up the light bar this way will put it on its own fuse. It will also only come on with the key as well. Because the accessory wires have power all the time. Also make sure you get the insulated connectors. We don't want any shorts.

Hope I did not confuse you any. I did all of mine in the headlight bucket. In this video he puts the relay under the seat. You also have a set of accessory wire there to. Same fuse as the ones in the headlight.
https://www.youtube.com/watch?v=rvz1E9PG78M
 

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Discussion Starter #5 (Edited)
Thank you mes882. I should be able to understand that chart.
 

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Discussion Starter #6
I have a relay and a plug for the relay. What I don't have is the time to get this done this week. lol Will it fit ok inside the headlight bucket or should I do it under the seat?
 

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Yup, I put my relay in the headlight bucket.
 

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Discussion Starter #9
Thank you for both your answers. I should be able to figure this out.
 

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If it's truly an OEM light bar he is adding there is no relay. Much easier to wire in without it. Instructions that came with mine were very simple to follow. Hardest part was removing the oem blinkers and mounting the new light bar. Wiring was a breeze, I also had the schematics handy to verify. I suggest getting a service manual if he don't have one already. My digital one ($10) from ebay worked just fine, but also bought a paper one ($60).

Yes I know he wants them to run all the time. So if that is the case he will need a relay. Just saying.

While I would also like to have them on all the time it really isn't necessary. The high beam is plenty bright. The driving lights are really only needed on low beam because (well) its the low beam. And they do help shine into the ditches as well. I suggest trying it without the relay in the stock configuration. It will save you some time. Go from there.
 

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Discussion Starter #11
If it's truly an OEM light bar he is adding there is no relay. Much easier to wire in without it. Instructions that came with mine were very simple to follow. Hardest part was removing the oem blinkers and mounting the new light bar. Wiring was a breeze, I also had the schematics handy to verify. I suggest getting a service manual if he don't have one already. My digital one ($10) from ebay worked just fine, but also bought a paper one ($60).

Yes I know he wants them to run all the time. So if that is the case he will need a relay. Just saying.

While I would also like to have them on all the time it really isn't necessary. The high beam is plenty bright. The driving lights are really only needed on low beam because (well) its the low beam. And they do help shine into the ditches as well. I suggest trying it without the relay in the stock configuration. It will save you some time. Go from there.
I was hoping you would see this DeputyLoud. I like reading what you have to say. It is the OEM light bar. I do have a PDF copy of the service manual. Do you have your bar wired to be on all the time? Would I still want a relay if I only wire it to be on with the low beam? I don't see where it could hurt. Just trying to make this as simple as possible. Thank you for everyone's help. I tend to over analyze everything and that makes me ask a lot of questions.

I will add that I rode my previous bike on the stock headlight for 7 years with no extra lights and I got by. I just feel that it would be nice to have all the light I can now that I have a bike that can handle a few extra lights.
 

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No relay when wired to low beams. Keep it simple for now I would say. I actually have found that I don't use my high beams as much since I put the light bar on. It realy makes a difference. The reason for relay is (as others have mentioned) is the amp draw on that circuit with high beams on along with driving lights. Wiring is probably not heavy enough for it unless isolated with relay. It might be fine, but can't say for sure. It's been on the back burner for me too, to wire into a relay and run all the time, but since I bought another bike all my focus has been on that and my Vulcan is my trusty road demon. Right now it just needs tires and 15000 service before spring. Good Luck!
 

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I agree with Deputy if you wire it on low beam (8.75 amps) then no relay. If you wire for high beam only (9.6 amps) use relay. If you have it on all the time use relay.

Mine are wired for high beams only that is why I used a relay. It just made more sense to me. I would guess Deputy low beam is brighter then his high beam.
 

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Discussion Starter #14
I went ahead and wired it with a relay on the chance that I might change it to run all the time. It is on with just the low beam now. Thank you again to mes882 for the diagram of the relay. It really helped.
 

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I noticed a dramatic drop in pull outs(cars/trucks pulling out in front of me like I wasn't there) after installing the light bar. I have mine set up to run on high and low beam and run on high regardless until after dark.
 

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I have both the wife's and my bike set so the driving lights are on for high and low beam. I look in the mirror at the wife's bike and all I see is a bright white image following me. We run with high beams and driving lights on in the daytime and are way more visible compared to other bikes we see that are running on low beams or without driving lights. Hardley ever drive at night.
 

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Discussion Starter #18
Help me with detail on the relay.
Go back and read what mes882 posted on the first page. It is what I used to wire the relay. Very easy to understand.
 

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Discussion Starter #20
Is there an existing relay or does one need to be installed.
You will need to get one. I got mine at work (John Deere dealer), but you should be able to find one at any auto parts store.
 
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