Honda-SOHC
SOHC.co.uk Forums => CB350/400 => Topic started by: Bradders on November 21, 2023, 07:15:40 AM
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Morning. I am in the process of derusting and treating my rear mudguard and have removed the original wiring harness that runs under the mudguard. My question is, does anyone know is it possible to purchase a new wiring harness ( the one that runs under the mudguard) rather than a complete harness for the whole bike? It seems the ideal time to change it?
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If I'm not mistaken, the only wires running under the mudguard are to the rear light fitting, and these are connected to the main harness with bullet connectors. It would possibly be cheaper and easier to purchase the relevant coloured wire, connectors, and some sleeving and make it a DIY job. Don't forget to use a piece of string to tie the wires together, then use it to pull them through the channel under the guard.
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Very easy to make your own - that's what I did on my last two bikes.
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Thanks for your replies guys. I know less than Zilch about wiring although would like to have a go. Where would I buy the wiring and connectors etc? I guess I would need to get hold of a crimping tool?
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You do not need a crimping tool I use pliers then solder the joint for what I think is s stronger joint than crimping especially if you have to unplug the connectors.
Kojaycat do the correct diameter connectors, I buy batches of wiring either from a loocal electrical shop or for specific colours try e-bay or link below. I tend to order more than I need so I have stock for future projects.
I ended up making a new mini harness for the horn as well as some of the replacement indicator earths.
https://kojaycat.co.uk/epages/950000457.sf/sec411c8d5d75/?ObjectPath=/Shops/950000457/Products/TB-3.5mm-5W-1PC
https://vehiclewiringproducts.co.uk/
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Thanks for the info Ted. How do I tell what gauge/ ampage I need and I’m embarrassed to say I don’t know how to solder!
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This may help too
https://www.ebay.co.uk/itm/152873651204
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I always tend to have my wiring on the heavier than needed side so I tend to use use multi stranded copper wire either 0.75 or 1.0 though you can safely go thinner as the ampage is low even lower if you fit LED bulbs.
Important thing with soldering is cleanliness, I still use leaded multicore solder - these days its lead free I believe. Lots on Utube on how to solder -easy to practice first until you learn how much solder you need to feed into a closed joint. I use a solder gun rather than an Iron it's personal choice though I have both.
I use a small multi jointed work stand with clips on to hold everything in place to avoid burns - like this mine is decades old
https://cpc.farnell.com/pro-s-kit/608-391b/helping-hand-system/dp/TL01327?mckv=s_dc|pcrid|224654335881|kword||match||plid||slid||product|TL01327|pgrid|50784539401|ptaid|pla-1680367460111|&CMP=KNC-GUK-CPC-SHOPPING-945678466-50784539401-TL01327&s_kwcid=AL!5616!3!224654335881!!!network}!1680367460111!&gclid=CjwKCAiAx_GqBhBQEiwAlDNAZiIsVAfbCLimEsjNJ86-O1GNCdrFb5uEd_9qkf9ELKFCSWsVXTYMMxoCttcQAvD_BwE
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There's always this.
https://www.cmsnl.com/honda-cb500k1-four-england_model14660/cord-tail-light-non_33711300000p/
500 should work in a 400 I reckon.
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Thanks Oddjob, I shall try to contact them to check if it fits.
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Not 100% sure I haven't got a spare one lying around somewhere Bradders.
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Ken, I don't think the harness in the link is a straight fit for the 400. The green wire should have female spade and not a female bullet. Also not that it would stop it working, the 400 is a brown wire not a brown / white. Having said that, a minor mod and it will do the job.
Bradders, I'll check tomorrow if you want.
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Not 100% sure I haven't got a spare one lying around somewhere Bradders.
That would be good if you have one for sale in your store Oddjob.
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Ken, I don't think the harness in the link is a straight fit for the 400. The green wire should have female spade and not a female bullet. Also not that it would stop it working, the 400 is a brown wire not a brown / white. Having said that, a minor mod and it will do the job.
Bradders, I'll check tomorrow if you want.
Thanks Delano that would be good.
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Bradders,
These are the three wires that make up the sub harness. The green is a spade not a bullet. Price of the green/yellow is ridiculous.
https://www.cmsnl.com/products/cord-stop-light_33710333000/
https://www.cmsnl.com/products/cordtail-light_33711333000/
https://www.cmsnl.com/products/cord-tail-light_33712300003/
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Thanks Deano for taking the time to look them up. That’s bizarre! I wonder why the green/yellow is so expensive?
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Just for completeness. Ken posted on a different thread (by accident) that the link he provided in Reply # 8 did have the correct spade end. The first picture appears to show a bullet but the second picture clearly shows it from a different angle and is indeed a spade. So Ken was correct in saying that the sub harness in the link would do the job.
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Thanks Deano. I may still buy the bits and do it myself, just for fun! My friend is a Licensed Avionics Engineer for Virgin so am hoping he may help me if I get stuck.
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I'll have a look around my spare pile and see if I can find one for you Bradders, I know I saw one in a box of engine bolts in the loft some time ago. Whether I spotted it and moved it somewhere else or just left it there I don't know. I suspect I just left it there though, it was all 3 wires just coiled up. I know the one off my present restoration is sitting in a carrier bag along with all the bolts for the exhaust but where that bag is I have no idea. I tend to find stuff like that when I'm looking for other parts.
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Thanks Oddjob.
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Found one Bradders, for some reason I kept thinking I'd seen one recently in a box on top of my workbench, which at 12ft in length is just covered in boxes with various bits just thrown in. I suspect I threw it there after stripping down a 3 hole rear mudguard from the states a few years ago. It came with the rear light and bracket still attached, not thinking I'd use the wires I just threw them in a spares box and left them there.. The wires are brown not brown/white (maybe the Yanks got brown instead of brown/white?) a green/yellow which is quite faded now but still visible and a green (why Honda would use such close colours in the same location is beyond me) The bullet connectors are perfect, the brown and green/yellow have shrouded female connectors on the other end, the only problem is the green for some reason has a female bullet, unshrouded I may add. Whether the PO did that I don't know, but I can crimp on a female spade and shroud no problem, whether I can find the required connector before I go abroad this weekend is the only problem. Can't remember if it has a normal size spade or a smaller one, for some reason I'm thinking smaller, I'd need to find a rear light to check.
Send me your address via PM Bradders and I'll bob it in the post either before this weekend or when I come back on the 3rd Dec if you can wait that long.
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Thanks Oddjob that sounds perfect. I’ll send you a PM.
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Have sent you a PM Oddjob.
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Sorry Ken, inadvertently sent you an email rather than a PM.
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Back in the UK Bradders and have found another in a box in the loft this morning. I know this is off a 500/550, same brown wire not brown/white. It still has all the original connectors fitted so I thought I'd clean that up and send that one instead but when cleaning the wires I thought they were longer and they were after comparing them with the first set. I'm wondering if the 400 uses shorter wires than the 500/550. Do you still have any of the original wires, if so measure them so I can send the set closest to that length
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Hi Oddjob, have sent you a PM.