Here's my take on installing Dominator Dual Headlights :
After reading the forum on the subject I've landed on some of robtharalson's post on how the dual headlight setup would damage the starter switch in the long run... here's a link to one of his posts : https://www.wristtwisters.com/forum/s...1&postcount=13
So, I've contacted him A BIG THANKS TO rob
and we came up with this circuit :
I have put a cap on the ground coming from the headlight connector to ground the circuit directly on the battery not to load the existing circuit.
With this setup - as previously mentioned - you put the load directly on the battery and not on the existing circuit... you actually only put the load of the relays on the existing circuit.
If you need help understanding how a relay works here's a good link : http://www.r1200gs.info/howto/relay.html
The wiring of the dominators is not the same as the harness from the bike :
919 harness - Dominator - Function
Green = Black = Ground
Blue = Yellow = High Beam
White = White = Low Beam
The wiring of the running lights inside the headlight assembly doesn't have the same color code either
Running Light - Function
Yellow = Ground
White = Energised (+12v)
What else you will need :
To complete the circuit as shown you will need :
- two relays
- 2 battery connectors
- 2 female insulated connectors
- 2 male insulated connectors
- some shrink wrap
- 1 inline fuse holder
- 1 25 amp fuse (maybe less but that's the one I used)
Now that you have everything you will need to complete the circuit as shown, you can put the relays inside one of the headlight assembly, yup it fits with a bit of a headache.... or you can put 1 in each of them.
Once the headlight circuit is done and the +12v and the Ground have their connectors :
(Side note : I used 1 male and 1 female for the ground and +12v from the headlights to be sure not to mix them up when I wire them with the battery)
- Prepare a length of red wire with the inline fuse holder with a battery connector on one end and a male or female connector on the other end (depending on the one you put on your circuit)
- Prepare also a length of black wire with a battery connector and a connector on the other end.
- Run the wires from the battery under the tank (following the main harness to the front of the bike) and zip tie them in place. - To move/lift the tank loosen the 10mm nut and bolt.
For the fuse holder find a good place near the other fuses and attach it with a tie-wrap or double-faced tape.
At the same time pull back some of the main harness under the tank
The last thing you need to do is change the 2 bolts that hold the headlight bracket for longer ones and add a few shims to space them out so the wider assembly can fit. (you need to spread them approximately half an inch to 3/4 of a inch in total.
Mount the lights while tucking in the wires and bolt everything and connect your 2 wires with the ones from the battery and your done !
You can see one of the connectors.. I just didn't hide it yet.. because the ground and +12 are different I can just tape them up to help hide them and not worry about mixing them up !
Next project : mounting the windshield for it.