Will coils from a K3 be good for a KZ?


Information and questions on GL1000 Goldwings (1975-1979)
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MikeyD
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Will coils from a K3 be good for a KZ?

Post by MikeyD » Mon Aug 13, 2018 4:14 pm



Hey people,

I have a ‘79 KZ that I’m nearly completing a 5000 miles trip to Norway on and I have two massively split coils. I am looking at getting a Dyna or C5 system in the near future but just to get home I have found some used coils off a K3. Are they ok use? I’ve hunted around but can’t find a definitive answer. I have electronic points rather than points and condenser.
Thanks I’m advance!
Mike

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landisr
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Re: Will coils from a K3 be good for a KZ?

Post by landisr » Wed Aug 15, 2018 2:34 pm

Hello. Just saw this. If you are still in need of assistance, could you please clarify: When you say KZ do you really mean K2, as in GL1000? Or do you really mean a Kawasaki KZ bike? If you mean Kawasaki, that could explain why no one has responded to this, as they/we are not familiar with the Big K.

Ron in AZ
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Maz
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Re: Will coils from a K3 be good for a KZ?

Post by Maz » Thu Aug 16, 2018 1:49 am

The coils, if they are standard on both bikes, should be the same and can interchange.

Hello. Just saw this. If you are still in need of assistance, could you please clarify: When you say KZ do you really mean K2, as in GL1000? Or do you really mean a Kawasaki KZ bike? If you mean Kawasaki, that could explain why no one has responded to this, as they/we are not familiar with the Big K.

Landisr, the KZ was a version of the Goldwing which was available in the UK (it had the three gauges on top of the false tank if I remember correctly). Not sure about other countries though.


Maz
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MikeyD
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Re: Will coils from a K3 be good for a KZ?

Post by MikeyD » Thu Aug 16, 2018 7:55 am

Yep that’s the one with the three dials in the tank.

Anyway the coils that where available turned out to not be ‘in stock’ so the question became redundant however now I’ve made it home I know I can look for coils from a wider choice of bikes.

Thank you
Mike

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SnoBrdr
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Re: Will coils from a K3 be good for a KZ?

Post by SnoBrdr » Thu Aug 16, 2018 11:58 am

MikeyD wrote:
Thu Aug 16, 2018 7:55 am
Yep that’s the one with the three dials in the tank.

Anyway the coils that where available turned out to not be ‘in stock’ so the question became redundant however now I’ve made it home I know I can look for coils from a wider choice of bikes.

Thank you
Mike
You can also look for coils from some cars as well.

The Dodge Neon coils work, I forget the years tho.

You can also use 1100 coils and maybe the 1200/1500 as well.

Many, many choices.

I use the C5 coils myself, $$$ but well worth it.

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Maz
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Re: Will coils from a K3 be good for a KZ?

Post by Maz » Thu Aug 16, 2018 1:27 pm

I don't think you can use the Dodge Neon coils on the 1000's . They measure 0.6 ohms, which would be a 20 Amp current draw, per side. Standard coils are 3 ohms, which gives a 4 Amp draw, but that would reduce even more if you take the ballast resistor into account too.
Maz
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SnoBrdr
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Re: Will coils from a K3 be good for a KZ?

Post by SnoBrdr » Thu Aug 16, 2018 1:52 pm

Maz wrote:
Thu Aug 16, 2018 1:27 pm
I don't think you can use the Dodge Neon coils on the 1000's . They measure 0.6 ohms, which would be a 20 Amp current draw, per side. Standard coils are 3 ohms, which gives a 4 Amp draw, but that would reduce even more if you take the ballast resistor into account too.
Maz
You can if you use electronic ignition but as you said, not on a stock GL.

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Re: Will coils from a K3 be good for a KZ?

Post by Maz » Thu Aug 16, 2018 1:55 pm

Even with electronic ignition, I'm not sure I'd want to draw 40 amps (in the positive feed) on the standard wire.
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SnoBrdr
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Re: Will coils from a K3 be good for a KZ?

Post by SnoBrdr » Thu Aug 16, 2018 3:04 pm

Maz wrote:
Thu Aug 16, 2018 1:55 pm
Even with electronic ignition, I'm not sure I'd want to draw 40 amps (in the positive feed) on the standard wire.
Maz
It's been done a zillion times.

Many threads on ngwclub.com

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Maz
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Re: Will coils from a K3 be good for a KZ?

Post by Maz » Thu Aug 16, 2018 4:09 pm

I shall have a look at that. I have actually bought a Neon coil pack that I wanted to try, but when I measured the resistance, I put the swap on hold, due to the current draw. It will be useful to see how they got round it without burning up the wiring after long use.

Maz
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Re: Will coils from a K3 be good for a KZ?

Post by froche » Thu Aug 16, 2018 7:33 pm

Use a resistor so the total (coil resistance + resistor) is about equal to the stock coil.

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Re: Will coils from a K3 be good for a KZ?

Post by DaveO430 » Thu Aug 16, 2018 8:24 pm

Maz wrote:
Thu Aug 16, 2018 1:27 pm
I don't think you can use the Dodge Neon coils on the 1000's . They measure 0.6 ohms, which would be a 20 Amp current draw, per side. Standard coils are 3 ohms, which gives a 4 Amp draw, but that would reduce even more if you take the ballast resistor into account too.
Maz
A neon coil draws 14 amps without a ballast, with the 1.5 ohm ballast from an 1100 it draws 4 amps, and works great on a 1000.

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Maz
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Re: Will coils from a K3 be good for a KZ?

Post by Maz » Fri Aug 17, 2018 1:45 am

DaveO430 wrote:
Thu Aug 16, 2018 8:24 pm
Maz wrote:
Thu Aug 16, 2018 1:27 pm
I don't think you can use the Dodge Neon coils on the 1000's . They measure 0.6 ohms, which would be a 20 Amp current draw, per side. Standard coils are 3 ohms, which gives a 4 Amp draw, but that would reduce even more if you take the ballast resistor into account too.
Maz
A neon coil draws 14 amps without a ballast, with the 1.5 ohm ballast from an 1100 it draws 4 amps, and works great on a 1000.
Thanks for that, Dave. I was thinking along those lines. I shall add that to the list of jobs to do when the weather gets too cold and wet to ride this year.

Maz
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Re: Will coils from a K3 be good for a KZ?

Post by DenverWinger » Fri Aug 17, 2018 1:39 pm

You also have to remember it is not a steady draw, just pulses.....
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Maz
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Re: Will coils from a K3 be good for a KZ?

Post by Maz » Fri Aug 17, 2018 3:08 pm

Yeah, true enough.
Maz


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