Author Topic: What spark plugs do you run CB 750 K0 ?  (Read 722 times)

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Offline Scootch

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What spark plugs do you run CB 750 K0 ?
« on: May 21, 2022, 10:32:23 AM »
The plugs that are in CB are NGK D-8ES. I am wondering how those stack up against what the consensus thinks is the ones to use??  TIA
« Last Edit: May 21, 2022, 10:41:45 AM by Scootch »

Offline rocket johnny

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Re: What spark plugs do you run CB 750 K0 ?
« Reply #1 on: May 21, 2022, 01:34:38 PM »
your using the correct plug

Offline Scootch

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Re: What spark plugs do you run CB 750 K0 ?
« Reply #2 on: May 21, 2022, 01:40:51 PM »
your using the correct plug
Thank you for the reply !

Offline BenelliSEI

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Re: What spark plugs do you run CB 750 K0 ?
« Reply #3 on: May 21, 2022, 02:05:18 PM »
I use D8EA’s.

Offline Kevin D

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Re: What spark plugs do you run CB 750 K0 ?
« Reply #4 on: May 21, 2022, 09:07:05 PM »
Nippon Denso X24ES-U (4099), 115main jet, 38 slow, needles are where Mr. Honda put them. No plug fouling.


Edit: I can read… and I have a K1. I expect this combo will work for K0 as well. My K0 fouled plugs just like this K1 used to, and a hard ride on the highway would clean them.
 I saw in your other thread ekpent couldn’t recall this plug number. I have to look it up too, because I need to replace them so seldom.
« Last Edit: May 22, 2022, 11:01:05 AM by Kevin D »
71 CB750 K1
104,000 miles
Original Owner
———past———
70 SL100/125/150
70 Candy BlueGreen CB 750 K0
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Former Honda parts kid/counter kid/do all
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Offline pjandrew99

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Re: What spark plugs do you run CB 750 K0 ?
« Reply #5 on: May 22, 2022, 02:55:34 AM »
Nippon Denso X24ES-U (4099), 115main jet, 38 slow, needles are where Mr. Honda put them. No plug fouling.

Exactly what I did. Helped a lot. I had to go up one needle position to completely solve the fouling issue. My problem was severe and involved all plugs.
Current Projects

Honda CB750K1
Yamaha SR250
Honda SL350 K0

Offline Scootch

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Re: What spark plugs do you run CB 750 K0 ?
« Reply #6 on: May 22, 2022, 03:37:50 AM »
Thank you for the info and suggestions !