Author Topic: Spark plugs  (Read 596 times)

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ROYC

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Spark plugs
« on: 27 February, 2017, 20:30:47 »
Is Champion N4 the same as N4c ?

My bike is a 1958 A7SS.
My bike is a 1958 A7SS

Bess

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Re: Spark plugs
« Reply #1 on: 27 February, 2017, 20:57:00 »
No c is conventional, c is copper plus design.

STEVE G

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Re: Spark plugs
« Reply #2 on: 27 February, 2017, 21:08:05 »
They are the same, as Bess said the C means it has a copper core central electrode.
I have a N5C in my B40 in place of the N5. I doubt if you can buy a N4 or N5 these days.
This is the Champion part numbering guide. http://www.championpowersports.eu/assets/Uploads/II-Partnumbering-structure.pdf

ROYC

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Re: Spark plugs
« Reply #3 on: 27 February, 2017, 22:35:52 »
Then the plug I have to use is a Champion N4c as a replacement for the N4 .
My bike is a 1958 A7SS

STAR TWIN

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Re: Spark plugs
« Reply #4 on: 28 February, 2017, 06:23:29 »
There are plenty of equivalents out there. I use NGK B7ES.

ROYC

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Re: Spark plugs
« Reply #5 on: 28 February, 2017, 06:39:31 »
Right, I've gone for AC 44XL.
My bike is a 1958 A7SS