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11
CB500/550 / Re: NGK plugs for 500
« Last post by McCabe-Thiele (Ted) on Today at 10:04:21 PM »
Quote from: deltarider on Today at 09:42:20 PM
So far nobody knows. Why did you choose 'R' plugs?

I have no idea, I can't remember when I bought them either.

I do have a set of Denso X22ES-U plugs.

I think my bike had  NGK D7EA fitted .

12
CB500/550 / Re: NGK plugs for 500
« Last post by Bryanj on Today at 10:01:21 PM »
Ted, if you can find any D7EV are the dogs doodads for the 500, it should have had newish D7EA in it when you got it, D7ES is the original and not available the A is same as S according to NGK. You should not be using the R type
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CB500/550 / Re: NGK plugs for 500
« Last post by Johnwebley on Today at 09:45:17 PM »
I don't think ES are available,
The DR are resistor plugs
Could cause issues if used with resistor plug caps

That leaves D7EA,
Or if you ride harder D8EA

same as 400 and 750,

I use Denso equivalent, and an very happy

Sent from my SM-A546E using Tapatalk

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CB500/550 / Re: NGK plugs for 500
« Last post by deltarider on Today at 09:42:20 PM »
So far nobody knows. Why did you choose 'R' plugs?
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CB750 / Wow this is the real deal 1968 prototype CB750
« Last post by AshimotoK0 on Today at 08:58:19 PM »
https://www.cb750prototype.com/
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CB500/550 / NGK plugs for 500
« Last post by McCabe-Thiele (Ted) on Today at 08:22:43 PM »
I have no idea when or where I bought them - I have a set of new NGK DR7EA plugs.
DS show the 500 plug as NGK DR7ES.

Can I use these DR7EA no idea what the S means compared to A ?

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CB500/550 / Re: Henry Coles 550K3 for sale
« Last post by Bryanj on Today at 07:49:50 PM »
He traded it in to a dealer not running right due to carbs
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Misc / Open / Re: It's been a Shite yesr
« Last post by Seabeowner on Today at 06:59:03 PM »
Sorry to hear you are understandably down at this time Bryan.
Many of us heading for the cliff, but look inland and hope you will find solace in another direction.
I sure you get satisfaction helping online mates here.
It's over 20 years since I went online looking for advice and you were there back then. Can't remember how I found you but it was before this forum I'm sure. Keep on keeping on.
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CB500/550 / Henry Coles 550K3 for sale
« Last post by AshimotoK0 on Today at 06:58:35 PM »
https://www.facebook.com/marketplace/item/743953341154957

From what I remember the restorer Pete went to prison for embezzling his granny's money


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20
Misc / Open / Re: It's been a Shite yesr
« Last post by andy120t on Today at 06:10:22 PM »
All the best Bryan. This forum is a great place to offload when that's what you need. A very tough year for you and your family so I hope and I hope things look up as the summer progresses.
Andy
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