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Author Topic: Dumb question about plugs and caps... CB500  (Read 2421 times)

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Offline zackblack

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Dumb question about plugs and caps... CB500
« on: July 14, 2011, 09:44:59 AM »
ok first off: '72 CB500

It's my understanding that when I go to change my plugs that I need to buy NGK D7EA plugs (or according to some on the forum NGK D7EV for better performance) my question is thus:

What NGK caps do I need?  I would like part numbers for the two outer one and part numbers for the two inner ones.  (yes I've tried to figure it out for myself but I'm obviously having a brainfart because I can't figure it out)

Thanks!

UPDATE: My caps are resistorless so yes they'll need replacing
« Last Edit: July 14, 2011, 04:55:36 PM by zackblack »
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:) If I ask a question and forget to post model and year my bike is a '72 CB500 :)

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Offline Bankerdanny

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Re: Dumb question about plugs and caps...
« Reply #1 on: July 14, 2011, 10:01:37 AM »
Are you sure they need to be replaced? They are pretty robust.
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Offline Deltarider

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Re: Dumb question about plugs and caps...
« Reply #2 on: July 14, 2011, 10:04:14 AM »
Quote
They are pretty robust.
But for some reason or another they do detoriate over time.
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Offline zackblack

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Re: Dumb question about plugs and caps...
« Reply #3 on: July 14, 2011, 11:15:11 AM »
I seem to have OEM caps (and they are in good shape) but the rubber that covers the end with the wire is missing on one and these seem to be 0 resistance caps (I opened one up and the resistors are missing).

Anyway I don't want to mess around and guess what the PO did so I figured I would start with new plugs/caps and then I'd know what I'm dealing with.

Anyone know what caps I need?
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:) If I ask a question and forget to post model and year my bike is a '72 CB500 :)

kaniktshaq moritlkatsio atsuniartoq: Umingmaktormiut dialect.

"Observe the snow. It fornicates."

Offline zackblack

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Re: Dumb question about plugs and caps...
« Reply #4 on: July 14, 2011, 04:52:38 PM »
Bump
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:) If I ask a question and forget to post model and year my bike is a '72 CB500 :)

kaniktshaq moritlkatsio atsuniartoq: Umingmaktormiut dialect.

"Observe the snow. It fornicates."

Offline camelman

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Re: Dumb question about plugs and caps... CB500
« Reply #5 on: July 14, 2011, 04:54:47 PM »
I bought mine from z1 enterprises. They have a full selection of angles and lengths.
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Offline zackblack

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Re: Dumb question about plugs and caps... CB500
« Reply #6 on: July 14, 2011, 06:53:43 PM »
Ok listen I'll explain the issue:

My local shop (which is not a honda dealer) gets out "the big book" whenever you ask them for a part and then fumbles through "the big book" until they (sometimes) find what you are looking for.

If you have a part number then the process is quicker (and less slipshot).

The only other "local" place is 45min drive away and the service is about as good...
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:) If I ask a question and forget to post model and year my bike is a '72 CB500 :)

kaniktshaq moritlkatsio atsuniartoq: Umingmaktormiut dialect.

"Observe the snow. It fornicates."

Offline dave500

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Re: Dumb question about plugs and caps... CB500
« Reply #7 on: July 15, 2011, 12:58:04 AM »
i use 4 ngk part # XDO5F stock # 8072,these are the outer angled pair,your suppossed to use straight ones on the inner cylinders,mine reach ok,the straight ones are part # SDO5F stock # 8022,i got some from a kawasaki shop $7.50 each,ive also got them from david silvers.
« Last Edit: July 16, 2011, 12:54:41 AM by dave500 »
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Offline Deltarider

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Re: Dumb question about plugs and caps... CB500
« Reply #8 on: July 15, 2011, 01:56:52 AM »
Quote
i use 4 ngk part # XDO5F stock # 8072,these are the outer angled pair,your suppossed to use straight ones on the inner cylinders,mine reach ok,the straight ones are part # SBO5F stock # 8080,
Those are the ones, only isn't # SBO5F supposed to be # SDO5F?
Anyway the '5' indicate they have a 5KOhms resistor inside. 
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Offline dave500

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Re: Dumb question about plugs and caps... CB500
« Reply #9 on: July 15, 2011, 02:12:31 AM »
correct delta,and stock #8022,well spotted,ill email you a beer.
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Offline zackblack

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Re: Dumb question about plugs and caps... CB500
« Reply #10 on: July 15, 2011, 06:09:29 AM »
Thanks guys!  That is exactly the info I need!
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:) If I ask a question and forget to post model and year my bike is a '72 CB500 :)

kaniktshaq moritlkatsio atsuniartoq: Umingmaktormiut dialect.

"Observe the snow. It fornicates."

Offline dave500

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Re: Dumb question about plugs and caps... CB500
« Reply #11 on: July 15, 2011, 06:13:28 AM »
check the silvers site or z1 etc,explore the search for model parts etc,youll at least get a gist for what is out there,this is THE honda forum though!
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Offline willbird

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Re: Dumb question about plugs and caps... CB500
« Reply #12 on: July 15, 2011, 09:10:37 AM »
Looking on Amazon I see SD05F 8022 and XD05F 8072

What is the difference between the SD05F and XD05F ?
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Offline dave500

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Re: Dumb question about plugs and caps... CB500
« Reply #13 on: July 15, 2011, 04:30:51 PM »
x is angled,s is straight.
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Offline Danno

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Re: Dumb question about plugs and caps... CB500
« Reply #14 on: July 16, 2011, 12:15:56 AM »
the angled ones work fine on the inner 2 cylinders as well and give you a little more reach if your wires are short from being cut off a few times
my parts store have all the ngk plugs in one case and all the ngk boots in the one next to it
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