new coil wiring?

[madjap]

OK, I bought a new coil for my '72 xs650 chopper project. It's a single coil with two plug wires AND has three lead attachments. Two lead attachments are marked (-) and one attachment is marked (+). Since I'm still running stock dual points I'm assuming I just run each point wire to the negative (-) lead attachments and my hot 'ignition switch' wire to the positive (+) then connect my two condensers to the (-) negative leads, right?

 

[retiredgentleman]

OK, I bought a new coil for my '72 xs650 chopper project. It's a single coil with two plug wires AND has three lead attachments. Two lead attachments are marked (-) and one attachment is marked (+). Since I'm still running stock dual points I'm assuming I just run each point wire to the negative (-) lead attachments and my hot 'ignition switch' wire to the positive (+) then connect my two condensers to the (-) negative leads, right?

You need to give more information. What brand/name is the coil? Does the single coil unit contain one coil or 2 coils? How many ohms are the coil(s)?

 

[madjap]

Hmmmmmmm... Drag Specialties, dual fire mini-coil, 5 ohm coil.

 

[retiredgentleman]

Single coils only have 2 terminals, so its strange that you have one with 3 primary leads. The picture of that coil at Drag Specialties shows only 2 primary terminals.

There is no + and - terminals. You can connect any way you choose. Battery positive (ignition switch) to one side of the coil. Connect the 2 sets of points to the other side of the coil. Connect just one capacitor to the same place that you wired the points.

5 ohms is fine for points ignition.

 

[madjap]

then I picked the wrong picture... It looks JUST like that coil EXCEPT it has three inputs. One positive, two negative.

 

[madjap]

You suppose this coils has TWO internal coils? Because it CLEARLY has 3 posts (-) (+) (-)

 

[retiredgentleman]

You suppose this coils has TWO internal coils? Because it CLEARLY has 3 posts (-) (+) (-)

That's a possibility. Why don't you post a picture of the coil you are talking about, so we can all see what you see.

 

[madjap]

I don't have it in hand yet or I would. But it's on ebay under drag specialties and those numbers... Maybe when I get it WONT have three terminals, but it sure shows all three in the pic. And the seller assured me it had Three terminals...

 

[madjap]

OK, I put the stock photo of that coil on my album under the public pics, anyone care to hazard a guess...?

 

[weekendrider]

 

[retiredgentleman]

Now that I see the picture, it sure appears to be 2 individual coils in the one unit.
Just wire it the way you said in your post #1, and it should work great.

 

[vsop-dk]

I can second retiredgentleman, Ive had exact same coils on my old setup when I had the Pamco.

 

[madjap]

Ok, sounds good and I thank you good men!