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Is all B7ES plugs the same? 26 Dec 2020 15:20 #840614

  • F64
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for your reading pleasure

www.ngk.com/search/all?q=b7es

Yeah, you want NGK 1111 B7ES
NGK 2877 B7ES has a solid terminal

photo care of NGK.com

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Is all B7ES plugs the same? 30 Dec 2020 14:12 #840854

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Ok, this proves to be PITA Z1 does not carry those. I got 2 last plugs from local Autozone. Need 2 more and no local stores have them.
Seems like B7ES aka 1111 discontinued?
78 KZ650B2A - resto in progress
www.kzrider.com/forum/11-projects/615161...s-1978-kz650-project
Other bikes: 1978 BMW R100/7, 1978 Moto Guzzi T3, 2016 DRZ400s

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Is all B7ES plugs the same? 30 Dec 2020 17:14 #840873

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katit wrote: Ok, this proves to be PITA Z1 does not carry those. I got 2 last plugs from local Autozone. Need 2 more and no local stores have them.
Seems like B7ES aka 1111 discontinued?


As far as I know yes, but not actually discontinued but replaced. The B7ES is now a BR7ES. Resister plug now. I was able to order some through NAPA
1976 KZ 900 A4 kzrider.com/forum/11-projects/613548-1976-kz-900-a4
1976 KZ 900 B1 LTD
1978 KZ 1000 B2 LTD
1980 KZ 750 E1
Kowledge Speaks, But Wisdom Listens.
Jimi Hendrix.

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Is all B7ES plugs the same? 30 Dec 2020 18:01 #840876

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After reading this I just ordered some ND W24ES-U plugs off ebay. It sucks that the old style removable top plugs are being discontinued.

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Last edit: by Nessism.

Is all B7ES plugs the same? 30 Dec 2020 18:35 #840877

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I've been using ND W22ES-U spark plugs in my KZ650 for the past 13 years and have found them to work better in my bike than the NGK plugs I previously used. Ed
1977 KZ650-C1 Original Owner - Stock (with additional invisible FIAMM horn)

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Is all B7ES plugs the same? 01 Jan 2021 00:54 #840951

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You can buy NGK caps meant for a terminal nut instead a terminal stud.

www.denniskirk.com/ngk/lb05ez-spark-plug...p20372.prd/20372.sku
www.ngk.com/plug-caps-ngk?pagenumber=2

picture-dennis kirk


picture-ngk
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Last edit: by F64.

Is all B7ES plugs the same? 01 Jan 2021 09:02 #840964

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F64 wrote: You can buy NGK caps meant for a terminal nut instead a terminal stud.

www.denniskirk.com/ngk/lb05ez-spark-plug...p20372.prd/20372.sku
www.ngk.com/plug-caps-ngk?pagenumber=2

picture-dennis kirk



picture-ngk


Thank you. Very useful info. The problem with the plug is they are superseding the non-resistor plug to a resistor plug. The new BR7ES plug is still available in removable terminal nut but will not be usable with the existing resistor caps. I don’t understand the resistor concept but read that some resistance helps increase spark strength. But if you stack resistance then you diminish spark.
1976 KZ 900 A4 kzrider.com/forum/11-projects/613548-1976-kz-900-a4
1976 KZ 900 B1 LTD
1978 KZ 1000 B2 LTD
1980 KZ 750 E1
Kowledge Speaks, But Wisdom Listens.
Jimi Hendrix.

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Last edit: by Mikaw.

Is all B7ES plugs the same? 01 Jan 2021 10:01 #840974

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Katit had originally purchased a solid terminal B7ES from ebay.
In that situation a different NGK plug cap would work.

The B7ES is still available but in a larger spark gap version (1.1mm vs .8mm).
You just have to tighten the gap and use a different spark plug cap as it's a solid terminal spark plug.

Part number NGK2311 (B7ES-11)
www.ngk.com/ngk-2311-b7es-11-nickel-spark-plug

table- www.ngk.com/search/partname?q=b7es
81-KZ440-D2.
Louis Dudzik's GM HEI ignitor conversion installed 2015 s3.amazonaws.com/gpzweb/Ignition/GPZgmHEImod.html
Motogadget m-unit blue installed 2017.
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Is all B7ES plugs the same? 01 Jan 2021 10:19 #840978

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Correct to address the OP. We got off typic chasing plugs as the correction.

Thank you for finding the replacement non-resistor plug. Why or what is the reasoning to go to Nickle? I also see the 2311 is a solid nut. So to continue to use the NGK we would have to swap in new caps.
1976 KZ 900 A4 kzrider.com/forum/11-projects/613548-1976-kz-900-a4
1976 KZ 900 B1 LTD
1978 KZ 1000 B2 LTD
1980 KZ 750 E1
Kowledge Speaks, But Wisdom Listens.
Jimi Hendrix.

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Is all B7ES plugs the same? 01 Jan 2021 10:31 #840979

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Too late with info. Already found correct plugs and 5k cups. There is still NOS plugs on ebay
78 KZ650B2A - resto in progress
www.kzrider.com/forum/11-projects/615161...s-1978-kz650-project
Other bikes: 1978 BMW R100/7, 1978 Moto Guzzi T3, 2016 DRZ400s

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Is all B7ES plugs the same? 01 Jan 2021 12:08 #840987

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No worries katit.
I somewhat enjoy the research and seeing what solutions are available.

Mikaw,
Yeah, essentially you would swap caps. They twist on so it's not too much trouble.
Below is NGK's explanation on different metals they use.


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Louis Dudzik's GM HEI ignitor conversion installed 2015 s3.amazonaws.com/gpzweb/Ignition/GPZgmHEImod.html
Motogadget m-unit blue installed 2017.
LIC, NY
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