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Author Topic: Is the D8EA plug the former D8ES or the former D8ES-L plug?  (Read 418 times)

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Offline Deltarider

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Is the D8EA plug the former D8ES or the former D8ES-L plug?
« on: April 22, 2024, 03:16:04 AM »
Have we concluded yet? Is the NGK D8EA sparkplug the former D8ES or the former D8ES-L plug?
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Offline PeWe

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Re: Is the D8EA plug the former D8ES or the former D8ES-L plug?
« Reply #1 on: April 22, 2024, 03:43:06 AM »
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CB750 K6-76  970cc (Earlier 1005cc JMR Billet block on the shelf waiting for a comeback)
CB750 K2-75 Parts assembled to a stock K2

Updates of the CB750 K6 -1976
http://forums.sohc4.net/index.php/topic,180468.msg2092136.html#msg2092136
The billet block build thread
http://forums.sohc4.net/index.php/topic,49438.msg1863571.html#msg1863571
CB750 K2 -1975  build thread
http://forums.sohc4.net/index.php/topic,168243.msg1948381.html#msg1948381
K2 engine build thread. For a complete CB750 -75
http://forums.sohc4.net/index.php/topic,180088.msg2088008.html#msg2088008
Carb jetting, a long story Mikuni TMR32
http://forums.sohc4.net/index.php/topic,179479.msg2104967.html#msg2104967

Offline bryanj

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Re: Is the D8EA plug the former D8ES or the former D8ES-L plug?
« Reply #2 on: April 22, 2024, 06:56:35 AM »
D8EA is same as D8ES. The D8ES-L was sold as a "half" grade
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Offline grcamna2

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Re: Is the D8EA plug the former D8ES or the former D8ES-L plug?
« Reply #3 on: April 22, 2024, 07:05:18 AM »
They have NOS sets of 4) D8ES on Ebay now for a great price($12.99 shipped)which is item #176196940561.
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Offline Don R

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Re: Is the D8EA plug the former D8ES or the former D8ES-L plug?
« Reply #4 on: April 22, 2024, 08:09:54 AM »
 There are China made NGK fakes out there also.
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Offline PeWe

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Re: Is the D8EA plug the former D8ES or the former D8ES-L plug?
« Reply #5 on: April 22, 2024, 09:30:56 AM »
I had to check CB750 shop manual.
I guess the plugs changed in 1977, year more than bike related.

From K6 spec
#

(From the F2 spec) F3 and K7-K8 same plugs.
« Last Edit: April 22, 2024, 11:08:06 AM by PeWe »
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CB750 K6-76  970cc (Earlier 1005cc JMR Billet block on the shelf waiting for a comeback)
CB750 K2-75 Parts assembled to a stock K2

Updates of the CB750 K6 -1976
http://forums.sohc4.net/index.php/topic,180468.msg2092136.html#msg2092136
The billet block build thread
http://forums.sohc4.net/index.php/topic,49438.msg1863571.html#msg1863571
CB750 K2 -1975  build thread
http://forums.sohc4.net/index.php/topic,168243.msg1948381.html#msg1948381
K2 engine build thread. For a complete CB750 -75
http://forums.sohc4.net/index.php/topic,180088.msg2088008.html#msg2088008
Carb jetting, a long story Mikuni TMR32
http://forums.sohc4.net/index.php/topic,179479.msg2104967.html#msg2104967

Offline grcamna2

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Re: Is the D8EA plug the former D8ES or the former D8ES-L plug?
« Reply #6 on: April 22, 2024, 04:13:16 PM »
Quote from: Don R on April 22, 2024, 08:09:54 AM
There are China made NGK fakes out there also.

The ones I posted above are real NGK's.
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75' CB400F/'bunch o' parts' & 81' CB125S modded to a 'CB200S'
  I love the small ones too !
Do your BEST...nobody can take that away from you.
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