Author Topic: Found - B8ES plugs  (Read 375 times)

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Offline pidjones

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Found - B8ES plugs
« on: November 03, 2020, 11:28:06 AM »
Out for a haircut this morning, stopped on the way at our local NAPA autoparts. Asked if they had B8ES and they had 5! I bought four and they said they could have eighteen more in a few days. Must be remaining in-stock in the stores. So I'll go ahead and install the resistor caps (when they come in from EC) for now, and when I run out of the non-resistor plugs switch to BR8ES.
"Love 'em all.... Let GOD sort 'em out!"

Offline quocle603

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Re: Found - B8ES plugs
« Reply #1 on: November 03, 2020, 04:39:46 PM »
This for an RD? I thought the ES were too long.
Do not underestimate the power of a two-stroke.

1975 Yamaha RD350 (modified), 1973 Yamaha RD350 (stock), 1971 Suzuki T500, 1981 Yamaha XS650 HS2, 1982 Honda MB5, 1980 Puch Maxi, 1979 Puch Magnum, 1993 Tomos Bullet, 2003 Malaguti Firefox F15 LC

Offline SoCal250

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Re: Found - B8ES plugs
« Reply #2 on: November 03, 2020, 05:14:01 PM »
This for an RD? I thought the ES were too long.

Depends which RD model:
RD60 = B7HS
RD125/200/250/350 = B8HS
RD400 (and RD125C/RD200C) = B8ES
79 Yamaha RD400F     77 Yamaha RD400D      91 Yamaha TZR250R
75 Yamaha RD250B     75 Yamaha RD200B (project)
75 Yamaha RD125B     75 Yamaha RD125B (project)
89 Yamaha FZR400      05 Yamaha FZ6
** 02 Aprilia RS250 Cup for sale
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Offline SoCal250

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Re: Found - B8ES plugs
« Reply #3 on: November 03, 2020, 05:20:12 PM »
I also bought a few non-resistor plugs earlier this year when I heard they were discontinued. This is less than half of my stash :dawg:
79 Yamaha RD400F     77 Yamaha RD400D      91 Yamaha TZR250R
75 Yamaha RD250B     75 Yamaha RD200B (project)
75 Yamaha RD125B     75 Yamaha RD125B (project)
89 Yamaha FZR400      05 Yamaha FZ6
** 02 Aprilia RS250 Cup for sale
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Offline pidjones

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Re: Found - B8ES plugs
« Reply #4 on: November 03, 2020, 07:31:29 PM »
I figure the four that I bought MIGHT get me through getting it started. Maybe ride around the neighborhood. After they are toast, I'll probably replace the resistors in the caps with copper tubing and switch to the resistor plugs. Funny, I don't remember ever changing the plugs in my RD400c back in the '70s. Just add gas and oil, lube the chain and go.
"Love 'em all.... Let GOD sort 'em out!"

Offline teazer

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Re: Found - B8ES plugs
« Reply #5 on: November 03, 2020, 09:53:59 PM »
Well at least we know where the new NGK warehouse has moved to...

PID, Gas ain't what it used to be.  It's a whole different mix now and unleaded doesn't short out plugs with lead, but the plugs do take on a black coating that takes more heat to burn clean.

Try BR8EIX iridium plugs and zero resistance caps.

Offline Djg8493

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Re: Found - B8ES plugs
« Reply #6 on: November 04, 2020, 09:22:07 AM »
Last time I ordered I ended up with the B8HS-10 by mistake, haven't tried them yet but from what I read they are for the marine market and just gapped larger.  I re-gapped them properly and can't find another differences.  Anyone else try them?  At least they are still available.
1970 R5, 1975 Rd350, 1978 GT80, 1979 KZ400, 1988 Ysr50, 1990 GSXR750, 2006 WR450 SM, 2006 R6

Offline quocle603

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Re: Found - B8ES plugs
« Reply #7 on: November 04, 2020, 04:37:04 PM »
This for an RD? I thought the ES were too long.

Depends which RD model:
RD60 = B7HS
RD125/200/250/350 = B8HS
RD400 (and RD125C/RD200C) = B8ES

Thanks for clearing things up for me bud!
Do not underestimate the power of a two-stroke.

1975 Yamaha RD350 (modified), 1973 Yamaha RD350 (stock), 1971 Suzuki T500, 1981 Yamaha XS650 HS2, 1982 Honda MB5, 1980 Puch Maxi, 1979 Puch Magnum, 1993 Tomos Bullet, 2003 Malaguti Firefox F15 LC