brighter headlamp


Information and questions on GL1000 Goldwings (1975-1979)
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shawnee1952
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Motorcycle: 1977 gl1000
1987 Gl1200 Interstate

brighter headlamp

Postby shawnee1952 » Tue Jul 03, 2012 7:26 pm



I have heard others mention more powerful headlamps for motorcycles, my question is, will they operate on a standard charging system such as the factory stator on the gl1000? Is it just a plug and go situation or do they require
wiring modifications? I would like to place one in my Windjammer 3 fairing if it is a straightforward replacement. Thanks for reading and all replies are welcome.



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Fred Camper
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Re: brighter headlamp

Postby Fred Camper » Wed Jul 04, 2012 9:10 am

A good option is to add a relay to the headlight circuit.

The headlight gets power from a battery to the ignition switch, down to a connection in the birds nest, up the right handlebar to the starter switch, then back down the right handlebar to the birds nest,connect to a wire going up the left handlebar to the dimmer switch then back to the birds nest for a connection to the headlight. A fuse connection was not mentioned for simplicity lol.

With a relay, all the switches work as usual, but the lamp gets power directly from a fused battery lead that you install with no connections.

I can post a link showing the wires if this is interesting to you. In addition to a brighter stock lamp, you also reduce the current in the starter and dimmer switch which may allow them to live longer.

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moose4jesus
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Re: brighter headlamp

Postby moose4jesus » Thu Jul 05, 2012 8:58 pm

I bought this new Adjure lens and uses the same H4 bulb as the semi-sealed beam original. I am very satisfied with the performance at night plus it looks cool. Except my friend says I have to turn in my historical license plate soon if I keep buying modern upgrades...

http://www.ebay.com/itm/Adjure-7-inch-D ... 9b&vxp=mtr


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landisr
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Motorcycle: 1976 GL1000
1994 GL1500A

Re: brighter headlamp

Postby landisr » Sat Jul 07, 2012 9:17 am

Another thing that falls into the maintenance category no matter what headlight system you're using is to make sure the connection between the negative battery cable and the frame/engine mount is clean and secure. That would help the entire system meaning all lights would be somewhat brighter, etc. And the price is right, too. :lol:

Ron in MI
Beam me up, Scotty. There's no intelligent life down here.

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portugeezer
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1982 Gl500
1984 Honda Magna V30

Re: brighter headlamp

Postby portugeezer » Mon Jul 30, 2012 7:29 am

Fred, I am interested in doing that mod. My headlight has always been dim. I don't ride at night because it's so dim. A diagram would be great! Thanks!

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Fred Camper
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Re: brighter headlamp

Postby Fred Camper » Mon Jul 30, 2012 9:05 pm

This diagram has too many lights, but the wiring is the same and it works the same with just one high and one low beam:



The nice thing about it is that all the wires but the battery lead (30) are already in the headlight bucket and the relays also fit inside a stock headlight bucket. So you run a fused 12g battery lead from the battery positive terminal to the headlight bucket and wire with ground, low beam and high beam wires that are already in there. Very clean and not only does it help your starter switch to last but boy does the light get a lot brighter in comparison to the folks on vintage wings you ride with.

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portugeezer
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Re: brighter headlamp

Postby portugeezer » Mon Jul 30, 2012 9:28 pm

Mine is into a vetter windjammer! I wonder If I could just wire a hot lead from the battery and put a handlebar switch on it?

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Fred Camper
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Re: brighter headlamp

Postby Fred Camper » Mon Jul 30, 2012 9:35 pm

I guess you could, but really it is easier to just use your current switch like shown in the diagram. Remember, the only new wires shown is the battery lead, everything else is already up there by your head light.

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portugeezer
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Re: brighter headlamp

Postby portugeezer » Mon Jul 30, 2012 9:39 pm

I'll post a picture of the way the wiring is changed for the faring

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portugeezer
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Re: brighter headlamp

Postby portugeezer » Mon Jul 30, 2012 10:01 pm

I also don't understand this type of diagram. I wouldn't know what type of relay to use either

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Fred Camper
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Re: brighter headlamp

Postby Fred Camper » Tue Jul 31, 2012 6:48 pm

Okay, I simplied the diagram for a one headlight:



You need two 4 pin automotive relays, here is an example but they are available locally also as they are very common parts;
[url]http://www.amazon.com/Volt-SPDT-Automotive-Relay-40-AMP/dp/B0073W8BTA[/url?tag=goldwingdocs-20]

Now you ask, I have only one headlight, why do I need two relays? The low beam and high beam in your one headlight are each a separate circuit. And each circuit needs a relay to be most effective.
Keep in mind that this circuit gets installed in the three wires going to your headlight, the three wires include a ground, a high beam wire and a low beam wire.

You snip the three wires and install the relays as shown in the picture, introducing the new fused battery lead as show.

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portugeezer
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Re: brighter headlamp

Postby portugeezer » Wed Aug 01, 2012 8:07 am

So the ignition switch still turns the lights on? I can't get at the headlight bucket unless I remove the faring. There is a harness and a plug that goes into the faring to run the lights.

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Fred Camper
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Re: brighter headlamp

Postby Fred Camper » Wed Aug 01, 2012 10:19 am

No new switches are required and you do not need to access the headlight. Your 8 pin harness includes one wire do high beam and one for low beam. That is all you need. If you unplug the harness and exercise the low and high beam switch with a test light then you will learn which wires
you need to modify.

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portugeezer
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Re: brighter headlamp

Postby portugeezer » Fri Aug 03, 2012 1:31 pm

Ok, I appreciate you taking the time to post and please forgive my ignorance here. I want to make sure I understand what I am doing. Tell me if this is correct before I procede. By splicing into the wire harness I am opening up a direct current through the relay that is switched on as normal through the existing harness? I'm pretty sure I understand how this works. If that is correct I'm going to go ahead and do the mod!

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Fred Camper
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Re: brighter headlamp

Postby Fred Camper » Fri Aug 03, 2012 2:22 pm

I think you have it right. The signal for the wire you cut goes to the relay to turn it on. The wire that you cut on the other end takes the battery power directly to the headlight only when the light got power before.
Just this time power comes directly from the battery.

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portugeezer
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Re: brighter headlamp

Postby portugeezer » Fri Aug 03, 2012 4:30 pm

The wiring diagram does show all three wires to the headlight going through the relay. So I'm going to cut three wires and connect to the relay right?

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portugeezer
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Re: brighter headlamp

Postby portugeezer » Fri Aug 03, 2012 4:32 pm

There is room in the left side of the faring storage I think I will just splice it and leage the relays in there!

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Fred Camper
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Re: brighter headlamp

Postby Fred Camper » Fri Aug 03, 2012 5:38 pm

Yes, three wires but the ground wire goes both to the relay and on to the headlight. So technically you just tap into (splice into) the ground wire. Putting the relays in the fairing is fine.

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portugeezer
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Re: brighter headlamp

Postby portugeezer » Fri Aug 03, 2012 5:55 pm

I will post pics and results. I ordered the relays today!

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portugeezer
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Re: brighter headlamp

Postby portugeezer » Tue Aug 14, 2012 8:34 am

Ok, I got the relays yesterday and did the wiring modification. The headlight is much brighter and I was able to ride at night! I now however have a new problem. The bright doesnt come on or it doesn't shut off I'm not sure which. If I hit the the switch the dummy light that says bright goes from being lit to getting brighter but it doesn't change anything. I replaced the bulb and it's the same. Any ideas? I ran a seperate ground off the relays. If I splice into the headlight ground would that possibly make a difference?

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portugeezer
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Re: brighter headlamp

Postby portugeezer » Tue Aug 14, 2012 4:06 pm

I switched the ground and it's still the same! I had the light capusule out to get to the ground. Both filaments are on all the time. I think I'm just going to leave it this way.

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portugeezer
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Re: brighter headlamp

Postby portugeezer » Tue Aug 14, 2012 4:12 pm

I should mention that when I got this bike not much on it worked. There are a lot of wires that are definatly not original. I repaired a lot of bad wiring to get it going again. Something is probably rewired incorrectly. I am elated to be able to ride at night now! A big Thank You to Fred! I owe you a beer or something if you are ever in the Chicago area!

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Fred Camper
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Re: brighter headlamp

Postby Fred Camper » Tue Aug 14, 2012 4:56 pm

Well perhaps your old wiring is suspect then. But just to be sure.

Regarding the relays, double check the wiring;

A ground wire goes to the common bulb wire in the fairing, and to each relay at terminal 85. I think you have that correct.

Your new battery lead goes to both relays on terminal 30. So two connections for the battery wire and both on relay terminal 30. These can be joined.

Terminal 87 on the low beam relay (relay 1) goes to the headlight low beam filament wire.

Terminal 87 on the high beam relay (relay 2) goes to the headlight high beam filament wire.

Terminal 86 on the low beam relay (relay 1) connects to your bike low beam wire as it heads up from the birds nest into the fairing.

Terminal 86 on the high beam relay (relay 2) connects to your bike high beam wire.

No headlight should be on during engine crank as during crank both high beam and low beam wires are opened up. Verify this.

Only one relay should be switched on at a time provided your bike low and high beam wires are unique and not joined somewhere.

Burning both filiments at once is a concern for two reasons;

1) bulb overheating and melting and

2) battery discharge. Goldwing stators have little extra output and cannot support both filiments on at once at idle.

We can fix this thing. Try disconnecting the terminal 86 from each relay and see when they get 12 volts (Use a test light or voltmeter between the wire and a good ground)

The low beam terminal 86 wire should only have power when the engine is not in crank mode and when the low beam bar switch is on.

The high beam terminal 86 wire should only have power when the high beam bar switch is on high.

I think this is where you may find an error.

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portugeezer
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Re: brighter headlamp

Postby portugeezer » Tue Aug 14, 2012 5:12 pm

I checked the terminals they all seem to be correct. Both relays click on as soon as I turn the ignition key on. I can feel them click in my hand.

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Fred Camper
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Re: brighter headlamp

Postby Fred Camper » Tue Aug 14, 2012 5:18 pm

So remove the wires going to terminal 86 from each and check for voltage in crank and run mode.




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