Author Topic: What spark plug for 78 cb750k  (Read 3751 times)

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Offline CBR750RR

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What spark plug for 78 cb750k
« on: April 02, 2012, 07:51:18 PM »
People are confusing me, most say NGK D8EA but then im told its a resistor plug and wont work right?

so what is the correct plugs I need for my 78?

Offline Spanner 1

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Re: What spark plug for 78 cb750k
« Reply #1 on: April 02, 2012, 08:03:17 PM »
D8EA x 4  :),,, the resistor is already in the plugcap.
If your sure it's a carb problem; it's ignition,
If your sure it's an ignition problem; it's carbs....

Offline Duke McDukiedook

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Re: What spark plug for 78 cb750k
« Reply #2 on: April 02, 2012, 09:48:46 PM »
A resistor plug usually has an 'R' in the description.
"Well, Mr. Carpetbagger. We got somethin' in this territory called the Missouri boat ride."   Josey Wales

"It's Baltimore, gentlemen. The gods will not save you." Ervin Burrell

CB750 K3 crat | (2) 1986 VFR750F

Offline CBR750RR

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Re: What spark plug for 78 cb750k
« Reply #3 on: April 03, 2012, 11:27:44 AM »
ok so I DO want the d8ea?  I thought no on those?   

Offline Duke McDukiedook

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Re: What spark plug for 78 cb750k
« Reply #4 on: April 03, 2012, 11:42:55 AM »
Yes, or you can put in the Nippon-Denso NDX 24ES-U if you can find it.

Sparkplugs.com sells both last time I checked.
"Well, Mr. Carpetbagger. We got somethin' in this territory called the Missouri boat ride."   Josey Wales

"It's Baltimore, gentlemen. The gods will not save you." Ervin Burrell

CB750 K3 crat | (2) 1986 VFR750F

Offline john_matrix

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Re: What spark plug for 78 cb750k
« Reply #5 on: April 03, 2012, 11:57:29 AM »
Yes, or you can put in the Nippon-Denso NDX 24ES-U if you can find it.

Sparkplugs.com sells both last time I checked.


I just bought 4 from Amazon.
1977 CB 750K

Offline CBR750RR

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Re: What spark plug for 78 cb750k
« Reply #6 on: April 03, 2012, 12:15:36 PM »
Ok dukie thanks

I just bought 4 d8ea at autozone for 2.50