Honda-SOHC
SOHC.co.uk Forums => CB500/550 => Topic started by: sye on March 02, 2019, 05:06:05 PM
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Hi, I had to buy a new loom for the K1 which seems to be missing a connector (or two). the bike has the additional 2-way lighting switch marked HL - OFF. There are two wires that come from this, one black (live) and the other brown with a blue stripe. My loom has no matching wires for the brown/blue wire and I can't find it on the wiring diagram. Has anyone come across this before and know the work-around.
This is the loom I bought: https://www.ebay.co.uk/itm/Main-Wiring-Harness-32100-323-040-Honda-CB500K-1972-1973-WH-323/232588249294?hash=item36275708ce:g:0BsAAOSwmwtaKAGZ:rk:1:pf:1&frcectupt=true
Thanks.
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Brown/Blue wire normally is reserved for the turn signal buzzer. If you don't have a turn signal buzzer, so much the better. The beeper irritates and almost all of us disconnect it. A CB500 like yours had no less than four different Wiring Diagrams in the Owner's Manual (US, UK, General, Germany, France, European Direct Sales). Differences often are about the lighting and the horn arrangements. First check in the parts list what model (area code!) you have by comparing your engine- and framenumber with those listed in the first few pages of every CB500 Parts List. You find the parts lists here: http://www.honda4fun.com/materiale-documentazione-tecnica/parts-list/parts-list-cb500
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Thanks but it's deffo for the headlight switch. I fail to see why it's there really, it's just an onn/ff switch for the headlights but there is already an an off/low/park/main switch on the right, so it's duplicating that in some way.
Unless this has a US R/H switch gear? I have no idea of the previous history, so it may be?
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According to a parts finder the harnass is for the CB500K1(A) and the CB500K2(A). https://www.hondaparts-direct.com/oem-parts?aribrand=HOM&arian=MOTORCYCLE# Both US models.
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I've answered my own question I think? It looks like a US R/H switch as DSS show the UK one as not available but there is a picture as below. I can find a UK spec one but for more than I would like to pay :'(, so it looks like I will leave it in place but it won't do anything.
The UK spec one appears to have two brown wires, one with a white stripe and another with blue, so that's the answer, I think. ::)
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It was fitted as an extra by a lot of owners as it is very easy to plung yourself into darkness by pushing the RH switch too far and to the best of my memory we used to wire it between any black(switched power) and the white (dip) but nor 100%sure. It was more found on the 750 so maybe look at that diagram, brown/blue was the power into the dip switch when it moved to the L/H side.
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You have a mixture of switches fitted.
For the K1 the separate H/L on/off was added to European bikes as the US had a RHS switch marked off,L,H (with a sealed unit headlight I think) and Europe RHS the switch was P,L,H as we had a pilot/parking bulb in the H/L. The correct switch for a K1 is the P ,L, H switch 35300-300-730 I think.
Your RHS switch is the rare type fitted to the few K0s the appeared in the UK. And has the P as Bryan pointed out precariously between the high and low beam settings and as you say also has a off position.
I don't have a diagram for the UK K1, but Trigger posted one a few months back.
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The left and right switches are both wrong for a UK K1, also the grips :o ;D ;D
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And the correct ones are? Bought both left switches from DSS as the correct ones. Barstewards 8)
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And the grips too come to think of it :'(
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Everything looks K1 to me....but not 500K1, possibly CB750 K1 ???
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No US switch had a P Position as they did not have sidelights, US RH switch was off/Low/ High but the "detent" to turn off was more positive than UK one. My UK one in the 70's had the P position inbetween L and H with off at LH end with a poor "detent" and i got fed up of going dark on the country lanes covered in cowshite round Gloucestershire!
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NOS UK CB500/4 K1 switch gear and grip[attachimg=1][attachimg=2]
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With P in the middle is 400, late 550 and late 750 as, the hi/low switch was on the left ;)
but it was a different switch to what Sye has ???
You also seem to have the D washers missing from the top yoke ;)
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With P in the middle is 400, late 550 and late 750 as, the hi/low switch was on the left ;)
but it was a different switch to what Sye has ???
You also seem to have the D washers missing from the top yoke ;)
Nope, D washers both in place, in fact I have two spares I think. The handlebars are not original but they are drilled. From a 550 I think, so unless I re-drill them, the separate switch has to go on the right. The switches are a bloody nightmare TBH, there are so many options for different models and different countries. It also doesn't help that they are discontinued and when they do come up, someone wants the cost of a cottage in Wales for it.
Will stick with what I have until something comes up. 8)
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With P in the middle is 400, late 550 and late 750 as, the hi/low switch was on the left ;)
but it was a different switch to what Sye has ???
You also seem to have the D washers missing from the top yoke ;)
Nope, D washers both in place, in fact I have two spares I think. The handlebars are not original but they are drilled. From a 550 I think, so unless I re-drill them, the separate switch has to go on the right. The switches are a bloody nightmare TBH, there are so many options for different models and different countries. It also doesn't help that they are discontinued and when they do come up, someone wants the cost of a cottage in Wales for it.
Will stick with what I have until something comes up. 8)
Yep, a nightmare mate and i hate wiring ;)
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Sye. If you do have any spare 'D' washer and you would like to re home them....think of me please. Mine are missing on my CB750/4 K2 project.....I had them but, I think Graham has pinched them for one of his project......nothing is bloody sacred in this house, even D' washers ::) :o
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Found it. UK K1 wiring:
[attachimg=1]
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Thanks Seablower, that shows it perfectly.
Julie, I'll take a look and let you know.
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Looking at that diagram connect your br/blue to the br/white in the headlamp shell and its the same.( i knew i remembered white from somewhere!)
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Looking at that diagram connect your br/blue to the br/white in the headlamp shell and its the same.( i knew i remembered white from somewhere!)
That's what I am going to try Bryan, thanks.
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just to cause even more confusion i have a lefthand switch which looks brand new and identical to yours, but has the cutaway so the wires can exit outside the handlebars, not sure what bike it was off, and has had the wires chopped off. Pm me if any use to you
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If its a proper cutaway could be K3, if its been cut out by hacksaw its somebody fitting ordinary bars.
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no Bryan the k3 is different shape and has hi/low switch, mine is as pics and the cutaway is cast as original
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Probably for one of the smaller Hondas then, not all had internal wiring.