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Author Topic: Discontinued NGK spark plug  (Read 6104 times)

Offline The norm

Discontinued NGK spark plug
« on: January 16, 2021, 08:38:16 PM »
I'm sure everyone knows that NGK has discontinued the B8ES spark plug. What has everyone switched to? I did a search on here and didn't see a previous thread. Let me know what plug you guys are running with a stock ignition and with a CR ignition.
Thanks Loren
1986 Trx250r-- Hybrid Engineering 391(Good bye super 310)
1986 Trx250r-- Hybrid Engineering  ported stock 86 cylinder
1986 Trx250r-- craigslist engine with unknown ported 89 cylinder.
1985 Atc250r-- Needs a lot of work (Super 310's new home)

Offline croat1

Re: Discontinued NGK spark plug
« Reply #1 on: January 16, 2021, 08:59:21 PM »
1.  Go to every auto parts store in your town and clean them out of the B8ES plug.

2. Purchase Honda part number (98079-58840).  That part number is a NGK B8ES plug.  Should be $3.00 at your local Honda shop.

Joe
A few Laegers
1987 oem
2025 Yamaha Raptor 700R
Mission: Back to Basics.  On the trail or dune

Offline broken1

Re: Discontinued NGK spark plug
« Reply #2 on: January 16, 2021, 09:38:25 PM »
I will be purchasing a lifetime supply before they all disappear. Have a good start with about 10 on hand right now.

Offline The norm

Re: Discontinued NGK spark plug
« Reply #3 on: January 17, 2021, 02:24:59 PM »
I was able to locate a readily available alternative to the B8es plug. I bought a handful of B8eg which is supposed to be a better plug according to several MX forums. The 1997-2001 CR250 manual calls for a NGKBR8EG plug among a few other options. I am not sure if the CR ignition performs better with a resistor plug or non resistor plug.
Loren
« Last Edit: January 17, 2021, 02:41:55 PM by The norm »
1986 Trx250r-- Hybrid Engineering 391(Good bye super 310)
1986 Trx250r-- Hybrid Engineering  ported stock 86 cylinder
1986 Trx250r-- craigslist engine with unknown ported 89 cylinder.
1985 Atc250r-- Needs a lot of work (Super 310's new home)

Offline broken1

Re: Discontinued NGK spark plug
« Reply #4 on: January 17, 2021, 02:41:01 PM »
Thats a viable option since the BR8EG is what is used in the CR250.

Offline The norm

Re: Discontinued NGK spark plug
« Reply #5 on: January 17, 2021, 02:43:35 PM »
Supposedly the B8EG plug is less susceptible to fouling. I have probably fouled 3 plugs in 20+ years so I'm not too concerned about it.
1986 Trx250r-- Hybrid Engineering 391(Good bye super 310)
1986 Trx250r-- Hybrid Engineering  ported stock 86 cylinder
1986 Trx250r-- craigslist engine with unknown ported 89 cylinder.
1985 Atc250r-- Needs a lot of work (Super 310's new home)

Offline broken1

Re: Discontinued NGK spark plug
« Reply #6 on: January 17, 2021, 03:02:16 PM »
Fouled plugs only happen from improper jetting or from an engine thats getting worn & tired but even a tired engine can be re-jetted to prevent plug fouling. If you've only fouled 3 plugs in 20+ years that means your good at tuning & maintenance.

Offline The norm

Re: Discontinued NGK spark plug
« Reply #7 on: January 17, 2021, 03:08:22 PM »
I'll go with lucky lol
1986 Trx250r-- Hybrid Engineering 391(Good bye super 310)
1986 Trx250r-- Hybrid Engineering  ported stock 86 cylinder
1986 Trx250r-- craigslist engine with unknown ported 89 cylinder.
1985 Atc250r-- Needs a lot of work (Super 310's new home)

Offline tosaw

Re: Discontinued NGK spark plug
« Reply #8 on: January 17, 2021, 08:50:48 PM »
I work in the automotive industry and my local Napa rep gave me some E3 plugs to try and I've actually had good luck with them. (though I still keep an NGK on me, just in case).

E3.31 is the part number that interchanges to the B8ES

Offline The norm

Re: Discontinued NGK spark plug
« Reply #9 on: January 17, 2021, 09:16:30 PM »
Good info!
1986 Trx250r-- Hybrid Engineering 391(Good bye super 310)
1986 Trx250r-- Hybrid Engineering  ported stock 86 cylinder
1986 Trx250r-- craigslist engine with unknown ported 89 cylinder.
1985 Atc250r-- Needs a lot of work (Super 310's new home)

Offline atvmxr

Re: Discontinued NGK spark plug
« Reply #10 on: January 18, 2021, 06:27:05 PM »
They quit making the b8es?  I was looking through the manual on my last plug order and re-discovered Honda recommended a 9 heat range, so I’m trying those for now
Bunch of race quads that run on premix

Offline 2Nubs

Re: Discontinued NGK spark plug
« Reply #11 on: January 19, 2021, 12:20:47 PM »
I ran the eg plug and had good luck with it. CR ignition. Ran that plug the entire time I had my R. Little thin wire plug.
‘86 330

Offline havinnoj

Re: Discontinued NGK spark plug
« Reply #12 on: January 26, 2021, 12:15:01 PM »
Been running BR8ES's in both bikes with CR ignitions.  Have tried BR8IX's and those seem good too but didn't seen a 3x improvement to warrant the price point. We did run those exclusively in Super on alcohol though.

Offline The norm

Re: Discontinued NGK spark plug
« Reply #13 on: January 26, 2021, 12:36:12 PM »
I bought two boxes of the B8EG and will run them in all 3 R's. The boys have oem ignitions and those do not need resistor plugs
1986 Trx250r-- Hybrid Engineering 391(Good bye super 310)
1986 Trx250r-- Hybrid Engineering  ported stock 86 cylinder
1986 Trx250r-- craigslist engine with unknown ported 89 cylinder.
1985 Atc250r-- Needs a lot of work (Super 310's new home)

 

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