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Electrical
Where does this wire go?
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  Topic Review (Newest First)
02-26-2010 12:28 PM
slimvulcanrider I added a cig light adapter behind the right cover, wired directly to the battery... I just have to make sure to unplug my cell when the bike is off... but usually take the phone with me any ways
02-26-2010 11:20 AM
flitecontrol
Quote:
Originally Posted by hyperbuzzin View Post
Something else you could do for the compressor is to get an extension cig lighter plug like this...


Remove the male end and attach a two pin plug for the tender plug.
That way, you could also use it for a cell phone charger/GPS/MP3/whatever else uses a cig lighter plug
Yes, I'd forgotten about the need to charge my cell phone. Keep it in my riding jacket and only turn it on when I need to make a call. Good suggestion!
02-26-2010 10:36 AM
hyperbuzzin Something else you could do for the compressor is to get an extension cig lighter plug like this...


Remove the male end and attach a two pin plug for the tender plug.
That way, you could also use it for a cell phone charger/GPS/MP3/whatever else uses a cig lighter plug
02-26-2010 10:06 AM
flitecontrol Thanks to one and all! Looks like rain, so I may get started on this today.
02-26-2010 01:18 AM
slimvulcanrider you need to figure out wich wire is positive and which one is negative on the compressor, to do this take apart the cig adapter plug on the compressor and the wire that runs to the outside two prongs is negative, the wire that runs to the spring loaded tip is positive.

the relay you have is fine. and you can hook up the voltmeter to both leads inside the HL bucket. the White w/ Blue stripe is + and the Black w/ Yellow stripe is -
02-25-2010 12:49 PM
flitecontrol My apologies for not providing more information in my initial post. My electrical knowledge wouldn't fill a thimble. The compressor is an 8A 96W designed to plug into a standard "cigarette lighter" outlet. It has an internal 8A fuse. The PO left the battery tender leads on the bike and from what has been posted, it appears that it may be easier to change the compressor plug to an SAE 2 pin that will mate with the tender leads. Therefore, no need to include it on the relay. Anyone see any problems doing it this way? I have no idea which of the two compressor wires would be + or -, and would it matter if I get them switched?

The relay I have is 40 amp. If I need a different one, I will get it.

Couldn't find any info on how many amps the Fiamm horns draw. I wanted to run them direct from the battery because I remember reading on the forum that you wouldn't get the full sound using the stock wires. I plan to remove the stock horns.

Seems I read somewhere that running the voltmeter off the battery gave a better reading, but I could be wrong on that, and it might not amount to a hill of beans difference.

So, if I am interpreting things correctly:

1. Run the compressor directly off the battery, no need for a relay.

2. Use the relay only for the horns.

3. Wire the voltmeter as lance suggested.
02-25-2010 01:53 AM
slimvulcanrider
Quote:
Originally Posted by VN750Rider/Jerry View Post
7 amps for horns? Those must be some horns. What do the stock horns draw? As for the battery clips on the compressor, I did it that way so I could run the compressor off any battery, without the need for an accessory plug. I also have a larger, Black&Decker Airstation (really crappy brand I know) 12 volt compressor set up the same way, with a spliced on cord long enough to reach from the battery to all 4 wheels on my car and truck, which I take along if I am going on any kind of trip. Again, it has it's own internal fuse.

And while you should have no problem connecting a voltmeter to any hot wire on the bike that is hot whenever the bike is running, I would still conect it directly the the battery.


On my truck, I ripped out all the electrical, installed a large fuse box under the hood next to the battery, and connected it directly to the battery. I ripped out all the switches and wiring inside the cab, and built a custom switch panel with all new toggle switches, and all new wiring, with a separate circuit for everything. I used a pushbutton for the horn. I have a row of 12 toggle switches, one for everything on the truck, and a few more for some extra stuff I added. And every single circuit is fused right at the battery. I haven't had any yet, but if I ever do, there won't be any issues tracing down electrical problems. Jerry.
Wonder how hard this would be to do to our bike
02-24-2010 11:32 PM
VN750Rider/Jerry 7 amps for horns? Those must be some horns. What do the stock horns draw? As for the battery clips on the compressor, I did it that way so I could run the compressor off any battery, without the need for an accessory plug. I also have a larger, Black&Decker Airstation (really crappy brand I know) 12 volt compressor set up the same way, with a spliced on cord long enough to reach from the battery to all 4 wheels on my car and truck, which I take along if I am going on any kind of trip. Again, it has it's own internal fuse.

And while you should have no problem connecting a voltmeter to any hot wire on the bike that is hot whenever the bike is running, I would still conect it directly the the battery.


On my truck, I ripped out all the electrical, installed a large fuse box under the hood next to the battery, and connected it directly to the battery. I ripped out all the switches and wiring inside the cab, and built a custom switch panel with all new toggle switches, and all new wiring, with a separate circuit for everything. I used a pushbutton for the horn. I have a row of 12 toggle switches, one for everything on the truck, and a few more for some extra stuff I added. And every single circuit is fused right at the battery. I haven't had any yet, but if I ever do, there won't be any issues tracing down electrical problems. Jerry.
02-24-2010 11:10 PM
niterider If the comp has an on/off switch, you can run it right off of the batt. And disconnect when done with it. A quick connector like the battery tender has should work.
I was wrong if going the relay way at least two will be needed.
02-24-2010 11:00 PM
lance328
Quote:
Originally Posted by flitecontrol View Post
I want to power a voltmeter, Fiamm horns, and an accessory plug (to run an air compressor) on the same relay.

1. Is it a good idea to run all three on the same relay?

2. If yes, what size fuse should be used?

3. If no, what needs to have a separate relay, and what size fuse should I use in the various relays?

TIA
The Fiamm horns will need a seperate relay since it will only be activated when you press the horn button, they will draw around 7 amps.

Use a mini fuse holder off the battery for acc. and air compressor, 10 amps will be fine.

Since the main reason for the voltmeter is to see when you are NOT charging, there is no reason to run it off a relay unless you want to, the volt variance is minimal. The easiest hookup is to use the unused ground in the HL bucket and get power from a running light.
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