Honda-SOHC
SOHC.co.uk Forums => CB500/550 => Topic started by: beardylondon on September 23, 2022, 04:34:50 PM
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Starting a new thread, has anyone bought these aftermarket coils?
https://www.davidsilverspares.co.uk/CB550K-1976-USA/part_83533/
Ash said I should ask everyone as the primary coil resistance should around 4 to 5 Ohms, I asked DS this afternoon and they said they do not have this technical information!
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Then don't buy them. If they can't supply that information you can have a reasonable assumption it's wrong or they'd be willing to tell you.
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I fitted these (Hedler) as they are probably a temporary measure until I restore my originals.
They are Primary 5.11 Ohms - S 17.55 Ohms made by Hedler the spec is on Hedlers website p/n 540612H
I did mot use the screws shown in the picture mounted them in the original saddle at each end.
I switched the wiring so the poitive marked terminal was on the ignition feed side.
At £29.95 each did not break the bank.(inc post)
Just made a chain link type bracket for the bottom mount as they are 90mm not 100mm centres. Might need more work if you wanted to fit them facing backwards.
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https://www.ebay.co.uk/itm/151925589049
I think DS would tell you the brand if you asked them.
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If you zoom in the DS photo they look like Tec FL 703 12v as does the part description.
That is the same Tec part number on my original looking coils.
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In short: primary resistance should be advertised. Always. Original coils are 4,3 - 4,7Ω. Products from China are to be avoided, unless a well known western or Japanese brand has chosen their products to be manufactured there. In that case those products will carry the name of the brand. No brand means no one will accept responsibility. Your choice.
What we're witnessing now, is another wave in posts about coils. It seems contagious.
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I'm pretty sure that I read it here somewhere that DS went to Honda's original manufacturer's Tec to supply them.
It has been my experience that Chinese products do not stand still when it comes to improving quality either as direct suppliers or sub- contracting for well know brands.
What was true of a product 2 years ago can be a very different experience today.
The reality is that it's virtually impossible to buy top brand products today that are not either made there or they supply the components for. Miele is the only true German made product I can think of.
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You are mistaken, as if you zoom in photo in the link in my first post, the "aftermarket" coil there's no part numbers
https://www.davidsilverspares.co.uk/CB550K-1976-USA/part_83533/
But if zoom in on the more expensive OEM type, then you can clearly see FL 703, below and yes it says TEC in description
https://www.davidsilverspares.co.uk/CB550K-1976-USA/part_370607/
If you zoom in the DS photo they look like Tec FL 703 12v as does the part description.
That is the same Tec part number on my original looking coils.
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Were at cross purposes here I was looking at the OEM replacement never saw the cheaper ones.
The Hendler ones look to be a half decent unit plus they have a UK website.
https://www.hendler.co.uk/category/ignition-coils
More to the point the retailer I used via e-bay is local so if I have an issue no postage involved.- time will tell if I regret the choice.
https://www.davidsilverspares.co.uk/CB500K1-FOUR-1972/part_370618/
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Ah ok, no drama
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I asked DS about the after market ones and they said:
“There is no manufacturing information and they are a white box product. The supplier we have for these is in Taiwan.
The centres were roughly 101mm apart which appears to be the same as the OEM type we have. “
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So DS are buying stuff which they don't know the specs for or even if they are suitable for the purpose intended. I think they're just to lazy to look up the specs myself, I'd like to say nobodies that stupid but we all know it happens.
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I fired back and said I’m surprised, DS said they have been selling these for 10 years!
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I'd get them somewhere else if I was you. If they have no spec how do you know?
Plenty of other places.......
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I used a pair with the brand name DI for my 400/4. Although they were as sold as within spec I checked them anyway and they were fine. The downside was they were 10mm shorter than the original so I had to make up a suitable bracket to fit them. They worked fine. Unfortunately I cannot remember the supplier.
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I’ve been a bit busy and not got around to replacing the coils yet.
I think I’m going to go for these eBay ones.
Excuse my ignorance, but I presume it is relevantly easy to for new spark plug caps on the ends?
I fitted these (Hedler) as they are probably a temporary measure until I restore my originals.
They are Primary 5.11 Ohms - S 17.55 Ohms made by Hedler the spec is on Hedlers website p/n 540612H
I did mot use the screws shown in the picture mounted them in the original saddle at each end.
I switched the wiring so the poitive marked terminal was on the ignition feed side.
At £29.95 each did not break the bank.(inc post)
Just made a chain link type bracket for the bottom mount as they are 90mm not 100mm centres. Might need more work if you wanted to fit them facing backwards.
.
https://www.ebay.co.uk/itm/151925589049
I think DS would tell you the brand if you asked them.
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I found some similar ones on e-bay for my 500 they work just fine except the distance between the mounting points was about 5-10 mm shorter. I just fitted a shorort link bracket to make them fit - mine were branded as Hendler from a firm near Uttoxter, Staffs.
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Expect wiring will differ in color and male connectors where you need female and/or vice versa.
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Good point DR I had to switch the polarity as well to suit the negative earth - can't remeber if I had to change any bullet connectors.
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Thanks, but im not concerned about making new brackets, thats not my issue, I’m just wondering how easy it is to fit new spark plug caps to the leads?
I found some similar ones on e-bay for my 500 they work just fine except the distance between the mounting points was about 5 mm shorter. I just fitted a shorort link bracket to make them fit - mine were branded as Hedler from a firm near Uttoxter, Staffs.
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The caps just screw into the HT leads if you have the Caps with a screw in fitting like the originals. this link is for the ones I purchased just realised you are looking at the same item.
https://www.ebay.co.uk/itm/151925589049
Theses were mine plenty of HT length so you can fit them easily, looks like the same supplier except the name Hendler no longer shown.
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Thanks Ted.
Yes same item, as recommended by you in this thread!
Re: spark plug caps, thanks for advice and are these ones any good?
I haven't got the bike with me at the moment.
Im pretty sure this one is correct for 1 & 4
2 x XD05F
https://www.ebay.co.uk/itm/266722303334
https://www.davidsilverspares.co.uk/CB550K-1976-USA/pattern-parts/part_332941/
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My 400 came with new looking brown coloured NGK resistor type caps already fitted - they are substantial with the NGK moulded into the cap in brown. Two straight, two angled.
Those black ones look fake to me as the branding does not look right somehow - see how different they are to the DS ones in their photo. They look more like car ones with the cheap white paint on the logo.
The genuine NGK ones are quite expensive iirc.
If you look at the DS ones although in Black the NGK markings are like mine cast into the moulding.
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Funny you say that, as I took a screen shot of the below from David Silver last year, says aftermarket, but marked NGK, and they were red, now I can't find the red ones, only black on their website;
(https://i.ibb.co/C9BCQFZ/Honda-CB550-K-1976-USA.png) (https://ibb.co/n1rdjSv)
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Yes those Brown ones look really shiney compared to mine that are a slightly duller finsh as well as a different shade of brown - might be NGK make different quality caps for different markets.
As Bryan fitted mine I suspect they are the real McCoy.(https://live.staticflickr.com/65535/53656135284_516f55acc1_o.jpg) (https://flic.kr/p/2pKpHEL)PXL_20240415_145642823 (https://flic.kr/p/2pKpHEL) by Macabe Thiele (https://www.flickr.com/photos/187487200@N03/), on Flickr
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thanks, looks same moulding as this one, albeit different colour
https://www.davidsilverspares.co.uk/graphics/parts/30700MW3000P_large.jpg
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Similar but slightly different markings with SBF05-R
This will make you smile my angled ones I have just noticed are marked SBF05 not only is there no "R" but the NGK branding is also painted white wtf?
The straight caps have a pair of slots moulded in - presumably to fit a tool for pulling off the caps - my angled ones do not but being angled easier to remove without pulling on the HT lead.
Might be I have two genuine & two aftermarket - a Guru here will know! ;D ;D ;D
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Thanks, this explains why I cant find genuine angles ones without the NGK painted white, I have emailed DS!
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DS came back and said these two are genuine NGK and obviously one has the NGK painted white
https://www.davidsilverspares.co.uk/CB550K-1976-USA/pattern-parts/part_332941/
https://www.davidsilverspares.co.uk/parts/by-part-number/partnumber_30700KR3670P/
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Funny you say that, as I took a screen shot of the below from David Silver last year, says aftermarket, but marked NGK, and they were red, now I can't find the red ones, only black on their website;
(https://i.ibb.co/C9BCQFZ/Honda-CB550-K-1976-USA.png) (https://ibb.co/n1rdjSv)
They are called aftermarket because they are different to the original fitment. Original plugcaps had those horrible metal shrouds which shorted like crazy when it rained. Were original caps supplied by Nippon Denso?
DSS wouldn't sell fake NGK plug caps deliberately, I'm sure. EBay sellers are a different matter. 🤔
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just found this
http://forums.sohc4.net/index.php?topic=192747.0
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This set seems too cheap to be any good?!
https://www.ebay.co.uk/itm/195978773341?mkcid=16&mkevt=1&mkrid=711-127632-2357-0&ssspo=a5qr2fnqtcu&sssrc=4429486&ssuid=wmWanCu3SsS&var=&widget_ver=artemis&media=COPY
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From China
[attachimg=1]
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True, but it “might” be a good? 😌
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True, but it “might” be a good? 😌
Indeed, it may be good.
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Yes I've bought from Chinese sellers in the past.
My issue is any warranty is generally worthless also returning goods often has costly hurdles to overcome.
If I can buy from a genuine UK based firm with a known returns policy with good feedback I buy from a UK firm even though it might be a few quid extra, not one of the sham fronts that you find on eBay that is some sort of warehouse with no UK phone number.
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My general experience with Chinese parts and tools is not good.
The exception is well known brands with a good reputation.
But as they say you pays your money and takes your choice......
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Thanks all, probably go for the previously mentioned ones, which don’t come with plugs, but are already being used by Ted
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I emailed this seller to ask what the primary resistance of these is, knowing I won't buy, but I was interested, and this is their response:
"primary resistance is ?
we can resistance
thank you"
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This set seems too cheap to be any good?!
https://www.ebay.co.uk/itm/195978773341?mkcid=16&mkevt=1&mkrid=711-127632-2357-0&ssspo=a5qr2fnqtcu&sssrc=4429486&ssuid=wmWanCu3SsS&var=&widget_ver=artemis&media=COPY
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Just found this information that I posted here a while back. I think I spelt Hendler wrong.
"I fitted these (Hedler) as they are probably a temporary measure until I restore my originals.
They are Primary 5.11 Ohms - S 17.55 Ohms made by Hedler the spec is on Hedlers website p/n 540612H
I did not use the screws shown in the picture mounted them in the original saddle at each end.
I switched the wiring so the poitive marked terminal was on the ignition feed side."https://www.hendler.co.uk/category/ignition-coils
Although this is the trade site you can still search the part number & find the coil specifications.
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funnily enough I was looking at Hendler's website this morning and found them on ebay for £24.49, same part number
https://www.ebay.co.uk/itm/176189478084?
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Yes that's the price each I think, mine were about £59.50 for the pair in 2022 so they will have gone down a tad.
Price updated.
bike.stop.shop are registered as SINo PANGAEA TRADING LTD based in Derbyshire.
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Hello,
I bought a pair of coils from EBay for £37! They’re bound not to work!
I’ve just fitted them. They’re working fine so far after an ‘extensive’ 25 mile test.
The only problem is (as someone else here stated) the mounting holes are 90mm apart and the standard fitting on my 550k3 is 100mm apart so you need to make up two little steel brackets. Measurements, 11mm wide, 28mm long with two 6.5mm holes with centres 10mm apart and 9mm from each end. Also as they have male spade connectors you have to make up 4 wires (2x female spade to male bullet black with white stripe and 2x female spade to female bullet one blue and one yellow). They need to be about 250mm long. I don’t think the coil connections are polarised so I just wired them the same way as each other. I suppose we’ll see how long they last.
I was also quite pleased I did this as the yellow wire connection just fell apart and was due to fail. Good luck with it.
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Why not indicate which you bought? We're in the dark.
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BTW I went for these Hedler ones, as recommended by Ted and also Ash said the higher resistance of these is better than cheaper versions.
They are yet to arrive, but I will report back.
https://www.ebay.co.uk/itm/145665457928
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Hello,
I bought a pair of coils from EBay for £37! They’re bound not to work!
I’ve just fitted them. They’re working fine so far after an ‘extensive’ 25 mile test.
The only problem is (as someone else here stated) the mounting holes are 90mm apart and the standard fitting on my 550k3 is 100mm apart so you need to make up two little steel brackets. Measurements, 11mm wide, 28mm long with two 6.5mm holes with centres 10mm apart and 9mm from each end. Also as they have male spade connectors you have to make up 4 wires (2x female spade to male bullet black with white stripe and 2x female spade to female bullet one blue and one yellow). They need to be about 250mm long. I don’t think the coil connections are polarised so I just wired them the same way as each other. I suppose we’ll see how long they last.
I was also quite pleased I did this as the yellow wire connection just fell apart and was due to fail. Good luck with it.
Is the primary resistance quoted?
A link to the actual item would help.
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I measured the primary resistance at 4.7 ohms.
I can’t work out how to share the actual link but copy and paste this into eBay and you’ll get it.
Ignition Coil x2 Honda CB400 CB500 CB550 CB750 GL1000 - 90mm 12V Points
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[...]
Is the primary resistance quoted?
A link to the actual item would help.
This ^ and is it a known brand? Advice in general: If no brand and made in China, abstain from ordering.
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Looks like these then. branded as SMP made for the seller in Taiwan?
.https://www.ebay.co.uk/sch/i.html?_from=R40&_nkw=Ignition+Coil+x2+Honda+CB400+CB500+CB550+CB750+GL1000+-+90mm+12V+Points&_sacat=0
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Received these, both appear genuine and boxes too, both with unpainted NGK logo
(https://i.ibb.co/1smrrC9/IMG-3159.jpg) (https://ibb.co/VHqggFv)
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They are the same I have. Tip: use a little vaseline, silicone oil or similar inside the upper sealing rubber before you screw the HT wire on. That rubber seal is a bit tight and could therefore resist slightly and give you the feeling you are already there, when in fact you're not. Then you would have a bad connection.
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Cheers!