Why Is The NGK B8ES So Hard To Find?
- TexasKZ
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Re: Why Is The NGK B8ES So Hard To Find?
13 Aug 2025 14:46
So far as I can find, the only difference between the ES and EV is that the EV has a thin platinum electrode, while the ES has a wide nickel electrode. They should work just fine as long as they have the screw off cap.
1982 KZ1000 LTD parts donor
1981 KZ1000 LTD awaiting resurrection
2000 ZRX1100 not ridden enough
www.kzrider.com/11-projects/620336-anoth...uild-thread?start=24
1981 KZ1000 LTD awaiting resurrection
2000 ZRX1100 not ridden enough
www.kzrider.com/11-projects/620336-anoth...uild-thread?start=24
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- Warren3200gt
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Re: Why Is The NGK B8ES So Hard To Find?
13 Aug 2025 15:00
Ev's have a thin electrode compared to es's.
Ev's are designed to run at constant high rpm and are likely to continually foul on a road vehicle.
Ev's are designed to run at constant high rpm and are likely to continually foul on a road vehicle.
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- danam
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Re: Why Is The NGK B8ES So Hard To Find?
13 Aug 2025 18:17
I’ve always used B8ES in my triumps and BSAs but alas they are scarce and being hoarded/ faked. A friend turned me on to NGK Iridium BR8EIX. They are more expensive but much better. My old bikes are first-kick with these. I will use them in my Z1 when I ever finish it.
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- Warren3200gt
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Re: Why Is The NGK B8ES So Hard To Find?
13 Aug 2025 23:59 - 14 Aug 2025 00:01I thought I had dumbed down my reply, obviously not enough. 🤷Are you and I having the same conversation or are you talking to people who aren't there again? Why is always the oddest exchange when you start posting? Like I told you I didn't build the engine.
Last edit: 14 Aug 2025 00:01 by Warren3200gt.
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Re: Why Is The NGK B8ES So Hard To Find?
14 Aug 2025 00:00I thought I had dumbed down my reply, obviously not enough. 🤷Are you and I having the same conversation or are you talking to people who aren't there again? Why is always the oddest exchange when you start posting? Like I told you I didn't build the engine.
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- asphalt900
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Re: Why Is The NGK B8ES So Hard To Find?
14 Aug 2025 01:47
As Ed noted, these NGK B8ES's have been discontinued in favor of the resistor plugs at least two yrs ago, maybe more. An alternative, same plug, is to find Honda part# 98079-58840. Making sure they come in their original Red Honda little individual boxes. China didn't fake those. I buy them up in bulk from old local shops or ebay when i can find them. I wouldn't waste my time on Amazon, never know what you'll get. Either way if you live in the sticks like i do you're going to have to have them shipped to you regardless.
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- asphalt900
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Re: Why Is The NGK B8ES So Hard To Find?
14 Aug 2025 02:09
Just noticed your reply Danam, person's (hoarding) these!! That would be me, probably wondering where they all went? My fault, i cornered the market, haha.
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- Wookie58
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Re: Why Is The NGK B8ES So Hard To Find?
14 Aug 2025 02:14Don't forget you will also need "non-resistor" capsI’ve always used B8ES in my triumps and BSAs but alas they are scarce and being hoarded/ faked. A friend turned me on to NGK Iridium BR8EIX. They are more expensive but much better. My old bikes are first-kick with these. I will use them in my Z1 when I ever finish it.
1982 KZ1000 Ltd
www.kzrider.com/forum/11-projects/617631...-82-begins?start=192
kzrider.com/filebase-alias?view=download...d-fault-diagnosis&ca
www.kzrider.com/forum/11-projects/617631...-82-begins?start=192
kzrider.com/filebase-alias?view=download...d-fault-diagnosis&ca
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- Nessism
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Re: Why Is The NGK B8ES So Hard To Find?
14 Aug 2025 05:13 - 14 Aug 2025 05:14
https
/www.ebay. com/itm/360780517093 (remove extra spaces)
This ebay seller has 150.8k feedbacks. Low risk of fake.

This ebay seller has 150.8k feedbacks. Low risk of fake.
Ed
Carb O-ring Kits : www.kzrider.com/forum/3-carburetor/61807...-o-ring-kits?start=0
www.kzrider.com/forum/faq-wiki/618026-new-owner-things-to-know
1981 KZ750E2
www.kzrider.com/forum/11-projects/604901...z750e-project-thread
Carb O-ring Kits : www.kzrider.com/forum/3-carburetor/61807...-o-ring-kits?start=0
www.kzrider.com/forum/faq-wiki/618026-new-owner-things-to-know
1981 KZ750E2
www.kzrider.com/forum/11-projects/604901...z750e-project-thread
Last edit: 14 Aug 2025 05:14 by Nessism.
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- Injected
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Re: Why Is The NGK B8ES So Hard To Find?
14 Aug 2025 05:58The ND's seem to be cheaper as well, I got some at a automotive parts place that was practically giving them away.The reason they are hard to find is because they have been discontinued. There are several threads here about this situation.
ND W24ES or W24ES-U are just as good, and easier to find these days. Just be sure to get the type with the threaded top cap, assuming you are using OEM type plug caps.
I have a bag full of lightly used NGK's both B7ES and B8ES (maybe 40 in there) that were taken off used engines so when I need any I just clean them with a propane torch and check the straps.
1978 KZ650B2 w 1197cc Z1 engine
1977 KZ650B1 w 750cc Spectre engine
1979 KZ650C3 w 831cc Hot Rod engine
1978 KZ650C2 w 762cc DFI project
1977 KZ650C1 stock restoration project
1978 KZ650B2 modified project
1978 KZ650B2 Injected Drag 831cc
1980 Z1 Custom Frame Drag 1327cc
1981 Z50R Honda tow bike
1977 KZ650B1 w 750cc Spectre engine
1979 KZ650C3 w 831cc Hot Rod engine
1978 KZ650C2 w 762cc DFI project
1977 KZ650C1 stock restoration project
1978 KZ650B2 modified project
1978 KZ650B2 Injected Drag 831cc
1980 Z1 Custom Frame Drag 1327cc
1981 Z50R Honda tow bike
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- chopper1963
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Re: Why Is The NGK B8ES So Hard To Find?
14 Aug 2025 11:16Please Log in or Create an account to join the conversation.
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