Post by: Nurse Julie on January 26, 2019, 03:34:00 PM
[attachimg=1]
Post by: hondarc166 on January 26, 2019, 04:54:08 PM
Post by: Nurse Julie on January 26, 2019, 05:20:30 PM
which bike JulieHettie, the CB400/4
Post by: Athame57 on January 26, 2019, 08:18:18 PM
Post by: Green1 on January 26, 2019, 08:25:00 PM
Post by: hairygit on January 26, 2019, 08:41:44 PM
Looks like theres still more copper there then italian wiring too me.Mick, you're finally learning!
Sent from my X6pro using Tapatalk
Post by: Green1 on January 26, 2019, 08:57:19 PM
Post by: Nurse Julie on January 26, 2019, 09:22:29 PM
Blimey Julie...is this the one in the huge rebuild that has its own link in your signature? I'd have thought you'd missed nothing!It is indeed George but, I only did the engine and refurbed the front forks. The wiring is generally in very good condition and if the loom tubing hadn't of split through age, I wouldn't have even considered doing anything to the wiring at all. Just shows, things that are hidden need looking at to prevent a problem occurring.
Post by: matthewmosse on January 26, 2019, 09:55:46 PM
Post by: Athame57 on January 26, 2019, 11:18:11 PM
Post by: vraksianrebel on January 26, 2019, 11:25:38 PM
Post by: Bryanj on January 27, 2019, 08:11:10 AM
Post by: Nurse Julie on January 27, 2019, 09:26:23 AM
I had a new loom fitted to my bike but I got confused from the start, so I let a mechanic do the job instead, I wonder then did that job extend into the headlamp....I hate undoing the things!Most of CB400/4 wiring loom connectors are in the head lamp bowl. It is like a birds nest in there when everything is connected and is an absolute pain to find or get to the wire you need. The block connecter the red wire came from is behind the head lamp and is still very awkward to get to as difficult to get hand/ fingers in there to disconnect.
Here is what goes in to the head lamp bucket [attachimg=1]
And the other ends
[attachimg=2]
Post by: mattsz on January 27, 2019, 10:26:28 AM
[attach=1]
Interesting that of its five wires, the red is the only one with issues. Do you think the connector crimps worked their way through the insulation, and time just took care of the rest?
Post by: Nurse Julie on January 27, 2019, 10:36:23 AM
[attachimg=1]
Post by: mattsz on January 27, 2019, 10:38:05 AM
Yes Matt, ignition block connector. The other 4 wires in the block were fine so I'm not sure why this happened to the red wire. But, that's old bikes and original wiring for you I suppose.
Yup!
Post by: Clem2112 on January 27, 2019, 11:34:27 AM
40 years of use, so 4x original planned life, not bad.
Looming issues.
Post by: Nurse Julie on January 27, 2019, 12:03:54 PM
More current in that wire?, gets warmer than the others.I think you are probably right. The red wire is slightly heavier duty than the others in the block. I think it's done well really.
40 years of use, so 4x original planned life, not bad.
Looming issues.
Post by: taysidedragon on January 27, 2019, 01:03:11 PM
Dodgy old repairs don't help.
[attach=1]
Post by: mattsz on January 27, 2019, 01:15:03 PM
More current in that wire?, gets warmer than the others.
Doesn't whatever current that comes through the red wire go through the black wire (except for the "park" position)? And the red is heavier than the black, huh? Interesting!
I think you are probably right. The red wire is slightly heavier duty than the others in the block. I think it's done well really.
You should see the trouble they went through on the US bikes (combined front turn signal and "position light" indicators) to make it so when a turn signal is being used, the front position light filament in that indicator goes out...
Post by: matthewmosse on January 27, 2019, 01:28:41 PM
Post by: mike the bike on January 27, 2019, 06:06:59 PM
Post by: Sprocket on January 28, 2019, 12:42:16 PM
Oh, and if I buy a bike, job 1, but out any of those blue or red pre insulated terminals bodgers love to use. They seem to attract corrosion.All connectors are not (edit!) the same. I have seen various quality red bullet crimp connectors, the ones I have used (not bodged, thankyou!) are better than some but I'm damned if I can remember where I got them. Perhaps RS? The ones you get in blister packs from Halfrauds are questionable, as the insulator seems to deform completely when you crimp and then not return to it's original shape.
Post by: Bryanj on January 28, 2019, 12:47:54 PM
If you get technical the corrosion depends on flow of current.
Post by: Nurse Julie on January 28, 2019, 01:35:13 PM
I am going to replace the grey insulating tape that Honda put over the 'junctions' in the loom with heat shrink though, before fitting the new loom cover. May as well whilst I'm there., it was falling off anyway.
Post by: Spitfire on January 28, 2019, 02:33:44 PM
(https://imageshack.com/a/img921/9816/7a1xqF.jpg)
Cheers
Dennis
Post by: mattsz on January 28, 2019, 03:06:01 PM
Post by: Bryanj on January 28, 2019, 03:13:52 PM
Post by: mike the bike on January 28, 2019, 08:13:07 PM
Post by: matthewmosse on January 28, 2019, 11:45:17 PM
Accepted, there are good ones that are red or blue, but you know the generic halfords et al cheap blister pack items, I even have some - I think it's that the insulation on the cheap ones plus the crimp tools that come with them give a poor crimp, creating high resistance and that causes further issues. I must admit, they can be handy as a quick fix. But they do tend to get removed and replaced with the more expensive vwp jap connectors etc as appropriate once a bike goes into the workshop for serious fettling. The cheap crimp tools can deliver good results, used carefully. I think the main factor on the dreadful bullet connectors on reflection is they are often supplied as a one size fits all pack, designed for quite thick cables, its then quite hard to get them to tighten adequately, given they only have room for a single crimp, onto the copper, not a great deal of support from the insulation.Oh, and if I buy a bike, job 1, but out any of those blue or red pre insulated terminals bodgers love to use. They seem to attract corrosion.All connectors are not (edit!) the same. I have seen various quality red bullet crimp connectors, the ones I have used (not bodged, thankyou!) are better than some but I'm damned if I can remember where I got them. Perhaps RS? The ones you get in blister packs from Halfrauds are questionable, as the insulator seems to deform completely when you crimp and then not return to it's original shape.
Post by: vraksianrebel on January 29, 2019, 06:43:19 PM
Post by: matthewmosse on January 29, 2019, 07:25:10 PM