air horn help needed

[supermanprime]

ok i figured out where the red one goes it is connected to the positive tab. i do not see one for the negative tab. but these 2 wires are there instead, one "the black one" has a fuse the other"white one" is not the same as the tab connector, where do these connect to? i am thinking that if they are grounded somewhere else then the negative tab and just be left open? any ideas? they are for the air horns and they connect to the compressor that you see in the pic. thanks

[mikeb]

i think ya are side stepping a bit ,, to run air horns an need an relay to handle the current the horn button powers the relay and it transfers the power to the air pump
http://www.valkyrieriders.com/ShopTalk/AirHornCheap/horns.htm
i am sure a more computer teckie sole will draw it out for ya

[Thunderbolt]

but think of it like this.  If you run a wire from the - or neg. terminal to ground and put 12V on the + terminal, the compressor should run, and the horn will blow.
If you want to use your OEM horn button, here is what I did.  Pull the connectors off of your oem horn.  One of them will be ground.  The other will have 12V only when you press the horn button.  I rerouted this wire and extended it back to the right side cover and installed a 30A relay that is operated when the horn button is pressed.  Wire the relay through a fuse of the proper current rating for your horn, to the battery.  The relay output will hook to the + or positive terminal.
Chet Walters has good information and drawings on how to wire a relay on his site www.rattlebars.com.  See if this link works. http://www.rattlebars.com/mtz/basicrelay.html

[supermanprime]

ok i guess that i should add that these wires are coming from a relay. they all are, the person that installed it died a few years ago and when my friend too these off he forgot to take a pic of how they went back on. but yeah the 2 connecters from the horn run to the relay and these wires come from that relay.

[Robert]

I think it looks as if the white wire goes to the battery and the orange correctly goes to the pos on the compressor but I think the ground wire is in that tool box with a fuse on it. I would like to see the positive wire (white wire) off the battery have the fuse though. In any case once you have the positive taken care of any place you run a wire from the negative on the compressor to the neg battery terminal or the frame of the bike will work.

[supermanprime]

the black wire which is the thinnest of all the wires is the one that has a fuse connected to it, the white wire is just a wire with the lead.i guessed that the red wire was the positive so i connected it to the tab. but as i said there is a negative tab but no other wire has a tab connecter to it, just those 2 wires there , the white/non fused, and the black fused. you can see the fuse at the one oclock position in the second pic, and you can see the vacant negative tab on the first pic on the commpresser. thanks for the help guys, so i can connect the black wire to the frame then and the white one to ????

[Walküre]

Another couple good sites - just go through all the pictures:

http://www.ibmwr.org/r-tech/oilheads/cannister_horn.shtml

http://www.steveshood.com/images/horn_wiring.jpg

http://www3.telus.net/desktopsolutions/Miata/AirHorn/air_horns.htm



Once you understand how it works, wiring is a lot easier...

R

[Ricky-D]

Rather than guessing what wire is what, you should use a trouble light and a volt/ohm meter to determine what each wire is doing.

Simply to guess what this or that wire is for because of the crimped-on connector is foolhardy as is any other (shot in the dark) method of wire use identification.

The results of an error can be a costly and time consuming project of replacing melted wires and components.

***

[supermanprime]

here is the relay when it is off, the wiring is all in the original way it was going to and from the relay' the white and black ones that come from the grey sleeve are the ones that come from the original horn leads.the red is positive and goes into the + tab on the compressor. however the black with the fuse and the white are the ones that have me perplexed, is the white a negative and the black also? do they both connect to the negative battery terminal or one positive and one negative? or one on the from and the other to negative? i see non for the negative tab.

[Ricky-D]

Trying to guess what relay you have there is futile!

What relay you need is a SPST NO relay that you can buy for 10 bucks or less at an auto store.

I lieu of doing that, you need to take the leads off that relay and test it until you can determine what kind of function it performs.

It appears to me that the red wire and loose white wire are together but it's unclear!

Where on the bike was the "stuff" located. If you think the black was connected to the battery the "stuff" must have necessarily been close to the battery.

If the red and white are together and the red was connected to the pos+ terminal of the compressor the white could not possibly be grounded for then there would be a short circuit when the relay is activated.

How was the compressor grounded?

It's all in: what is that relay?

Did you look up the relay? You can you know?

Here, this may help you: http://www.the12volt.com/relays/relays.asp

***

[supermanprime]

the red wire has its own connection separate from the white, you can see it on the second pic.

[Ricky-D]

Write the number of the contact (printed on the relay) that corresponds to each wire you show in the pictures.

***

[hmt81]

http://www.rivcoproducts.com/instructions/download/Air%20Horn%20wiring%20and%20troubleshooting%20booklet.pdf

http://www.rivcoproducts.com/instructions/download/AHVAL_Install.pdf

[supermanprime]

yay, it is almost totally clear,lol from what i see in all these pics. from what ricky d shows me it looks like figure 4 the most. so that means the black fused one goes into the positive battery terminal since all the stuff is located near the battery. what does N/O and N/C mean?  the one that hmt81 is pretty clear but 87A is being used. i can't look it up now because the bike is in another town, from what i can see in the  12v diagram site that ricky D  suggested. the  black fused wire is N/O. the red is common. the black and white ones on either side are coil. that leaves the central one 87a or 87b depending on the diagrams, in one it says N/C but in the other it says N/O. so the white one is the one that is mysterious at this time.

[RP#62]

yay, it is almost totally clear,lol from what i see in all these pics. from what ricky d shows me it looks like figure 4 the most. so that means the black fused one goes into the positive battery terminal since all the stuff is located near the battery. what does N/O and N/C mean?  the one that hmt81 is pretty clear but 87A is being used. i can't look it up now because the bike is in another town, from what i can see in the  12v diagram site that ricky D  suggested. the  black fused wire is N/O. the red is common. the black and white ones on either side are coil. that leaves the central one 87a or 87b depending on the diagrams, in one it says N/C but in the other it says N/O. so the white one is the one that is mysterious at this time.

N/O = normally open
N/C = normally closed

With the relay unenergized, the common and the normally closed contacts are connected
With it energized, the common and the normally open contacts are connected.

-RP