I have 1 terminal, but I need 3 cables attached.

LasseNC · 03-25-2012, 08:22 AM

Hello!

I am making the wiring harness on my GT380 caferacer. The headlight I have is a british styled unit, with a "british style" contact.

It has three positions, OFF, LOW, HIGH.

When I switch to LOW, I want the Horn, Low Beam, Rearlight and Ignition to be on.

Problem is, there is only one terminal.

So my question is, how do I avoid piggybacking it all?

England-Kev · 03-25-2012, 09:52 AM

you really should fit an ignition switch before that off/low/high light switch. it would make it all so much easier...

usgser · 03-25-2012, 11:00 AM

Quote:

Originally Posted by LasseNC

Hello!

The headlight I have is a british styled unit, with a "british style" contact.

It has three positions, OFF, LOW, HIGH.

If you're using a Brit (Lucas) 3 position light switch. It's OFF/DIM/FLICKER.
Sorry couldn't help myself.

LasseNC · 03-25-2012, 11:27 AM

Easier than finding a suitable way to get three spades on one terminal? I doubt it Kevin.

It would been that I'd have to source an ignitionswitch and use alot more wires, plus where would I put it? :) I'm going keyless minimalistic.

trumpet · 03-25-2012, 12:35 PM

A terminal strip, like this. Mounted out of the way, can provide a solid way to build branch circuits.

LasseNC · 03-25-2012, 12:37 PM

Was thinking about something like that, but can't find these around here.

Zoef zoef · 03-25-2012, 01:05 PM

Not exactly the same, but perhaps this:
http://biltema.dk/da/Bil---MC/Bil-ti...klemmer-24394/
At Biltema

mike in idaho · 03-25-2012, 02:45 PM

Use a six pole, double throw switch. Run power to both center terminals, high and low beam to the end terminals on one side and your horn/ignition/brake light to both terminals on the opposite side. Bring the horn/ignition/brake wire out of the headlight shell back to a small 4 fuse box under the seat, you can run wires to everything from there. Not truly minimalist, it substitutes a fusebox for a multiple splice.

LasseNC · 03-26-2012, 05:44 AM

Hi Mike

Do you have a picture of one of those? I am not sure I understand.

Here is what I did as a temp. way, I know it is bound to fail.

lrutt · 03-26-2012, 10:11 AM

so what do you want when it's on high beam? same thing? if so, unless you use diodes or something, you'll get feedback through and not get what you think you'll get.

LasseNC · 03-26-2012, 10:14 AM

Quote:

Originally Posted by lrutt

so what do you want when it's on high beam? same thing? if so, unless you use diodes or something, you'll get feedback through and not get what you think you'll get.

How so? That doesn't make sense to me.

High beam is located in the switch itself, and not in the bridge, but when High is on, both High and Low will be on.

Nessman · 03-26-2012, 10:51 AM

I don't like to run that many functions through one switch. How about the LOW position tripping a relay for all functions (or most of them). The switch is designed for a headlight only, adding more current will make it fail prematurely.

LasseNC · 03-26-2012, 12:31 PM

Quote:

Originally Posted by Nessman

I don't like to run that many functions through one switch. How about the LOW position tripping a relay for all functions (or most of them). The switch is designed for a headlight only, adding more current will make it fail prematurely.

Do you know what such a relay is called? Sounds like a good idea.

caponerd · 03-26-2012, 04:57 PM

Quote:

Originally Posted by LasseNC

Do you know what such a relay is called? Sounds like a good idea.

The airhead BMW's use such a relay for the headlamp and horn.

I can't think of the part number offhand, but it's a very generic item that you can get at any auto parts supplier for $5-$6 (or euro equiv.), or from any BMW motorcycle dealer for $60.

(yeh, I know, there's a diode in those, which wouldn't be needed in this application)

Someone in the airhead section of this forum can fill in the blanks.

of course, if you're really looking for minimal, why not wire the ignition direct to the voltage regulator and use a battery eliminator (really big capacitor)? Then all you have to connect to the switch are your lights and horn.

Depending on how your electrical system works, you might be able to get away without adding a battery eliminator. I run my BSA 441 with no battery. I have to switch off the lights before I try to start the motor, but once it's running, the alternator (Lucas!) can handle the motor and the lights just fine.

Nessman · 03-26-2012, 08:59 PM

Apologies Lasse, I didn't have time to detail my relay idea, I'll try tomorrow.

You want to use the light switch as an ignition switch right?

How many wires does your switch have? I'm assuming three, power in, low out and high out.

Do you not intend to use the high beam wire? If all the functions you mentioned need to work on both high and low settings it's a bit more difficult.

Handlebar kill switch? Dash (instrument) lights? They both get involved in the wiring if you have them.

03-25-2012, 08:22 AM	#1
LasseNC ^OP XSessive! Joined: Jan 2008 Location: Denmark, Danimarka, Danmark, Dänemark Oddometer: 949	I have 1 terminal, but I need 3 cables attached. Hello! I am making the wiring harness on my GT380 caferacer. The headlight I have is a british styled unit, with a "british style" contact. It has three positions, OFF, LOW, HIGH. When I switch to LOW, I want the Horn, Low Beam, Rearlight and Ignition to be on. Problem is, there is only one terminal. So my question is, how do I avoid piggybacking it all?

03-25-2012, 09:52 AM	#2
England-Kev Beastly Adventurer Joined: Feb 2007 Location: Berkshire, England. Just off the Beaten Track! Oddometer: 2,629	you really should fit an ignition switch before that off/low/high light switch. it would make it all so much easier... __________________ http://kevindean.zenfolio.com/ http://motodelcurva.wordpress.com/ http://backstreetthunder.wordpress.com

03-26-2012, 10:11 AM	#10
lrutt SILENCE.....i kill you Joined: Jul 2005 Location: Deltona, FL Oddometer: 812	so what do you want when it's on high beam? same thing? if so, unless you use diodes or something, you'll get feedback through and not get what you think you'll get. __________________ 2004 Harley Sporster 1200C, 2001 Ducati M900, 2001 Honda XR650L, 1994 Harley Heritage, 1978 Honda CB750K with sidecar, 1977 Moto Guzzi 850 LeMans, 1976 Honda CB750K, 1965 Honda 305 Dream, 1973 Norton 850 Commando, 1971 Triumph Trophy 650, 1970 Honda Trail 90, 1970 Triumph Tiger 650, 1973 Honda Z50, 1984 Yamaha Virago 1000, 1981 Honda Passport 70, 1970 Suzuki T250, 1971 Yamaha RT1 360

03-26-2012, 10:51 AM	#12
Nessman Social invalid Joined: Feb 2004 Location: Everett, WA Oddometer: 1,300	I don't like to run that many functions through one switch. How about the LOW position tripping a relay for all functions (or most of them). The switch is designed for a headlight only, adding more current will make it fail prematurely. __________________ Matt Moto Guzzi T-3 '05 DR650

03-26-2012, 08:59 PM	#15
Nessman Social invalid Joined: Feb 2004 Location: Everett, WA Oddometer: 1,300	Apologies Lasse, I didn't have time to detail my relay idea, I'll try tomorrow. You want to use the light switch as an ignition switch right? How many wires does your switch have? I'm assuming three, power in, low out and high out. Do you not intend to use the high beam wire? If all the functions you mentioned need to work on both high and low settings it's a bit more difficult. Handlebar kill switch? Dash (instrument) lights? They both get involved in the wiring if you have them. __________________ Matt Moto Guzzi T-3 '05 DR650

03-25-2012, 11:27 AM	#4
LasseNC ^OP XSessive! Joined: Jan 2008 Location: Denmark, Danimarka, Danmark, Dänemark Oddometer: 949	Easier than finding a suitable way to get three spades on one terminal? I doubt it Kevin. It would been that I'd have to source an ignitionswitch and use alot more wires, plus where would I put it? :) I'm going keyless minimalistic.

03-25-2012, 12:35 PM	#5
trumpet Group W Bench Joined: Aug 2008 Location: Connecticut Oddometer: 1,252	A terminal strip, like this. Mounted out of the way, can provide a solid way to build branch circuits.

03-25-2012, 12:37 PM	#6
LasseNC ^OP XSessive! Joined: Jan 2008 Location: Denmark, Danimarka, Danmark, Dänemark Oddometer: 949	Was thinking about something like that, but can't find these around here.

03-25-2012, 01:05 PM	#7
Zoef zoef Gnarly Adventurer Joined: Apr 2009 Location: Finnøy Island, near Stavanger, Norway Oddometer: 256	Not exactly the same, but perhaps this: http://biltema.dk/da/Bil---MC/Bil-ti...klemmer-24394/ At Biltema

03-25-2012, 02:45 PM	#8
mike in idaho Adventurer Joined: Aug 2011 Oddometer: 67	Use a six pole, double throw switch. Run power to both center terminals, high and low beam to the end terminals on one side and your horn/ignition/brake light to both terminals on the opposite side. Bring the horn/ignition/brake wire out of the headlight shell back to a small 4 fuse box under the seat, you can run wires to everything from there. Not truly minimalist, it substitutes a fusebox for a multiple splice.

03-26-2012, 05:44 AM	#9
LasseNC ^OP XSessive! Joined: Jan 2008 Location: Denmark, Danimarka, Danmark, Dänemark Oddometer: 949	Hi Mike Do you have a picture of one of those? I am not sure I understand. Here is what I did as a temp. way, I know it is bound to fail.

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