1967 CB450K0 Black Bomber Rebuild - By Royhall

[royhall]

No they won't do Mo. I think I may have a spare set somewhere but may take me a while to find them.

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[mo goldie]

Are thanks Roy that would be great if you have got two please as it can`t hurt to put them in ha ...Ash said he might have some Needles and tubes that's would be good too... just want to get out and try her out

Oh update as Of just Now lol..... been out and had a look at the wiring Ash to the colors you said about and yes all seems Fine BUT ......... if you look at the two pictures you will see just done a test and the plug under the seat which go`s to the rectifier I put a Continuity test from that pink down to the pink in the plug down under the toolbox and there is NONE Tried it with ign on and off and Nothing..... done it with the yellow and Brown and No probs all fine ..... don`t know what that's all about seems very strange to me ..but Not up on electrics MUCH     

[Johnny4428]

Hi Mo, not that good with electrics either but just an observation made, that top photo where the frame earth is that black cable en doesn’t look too good! Looks as if it needs trimming and re soldering.

[mo goldie]

Hi Johnny

It`s a Bradded Earth which is about 6mm think and inside sleeving so one of the best Earth`s you can have,,, but thanks for you observation 

But I am stumped at the minute as can`t work out why I can`t get that pink to not marry up with the other end.....will have to have a better look soon as that Must be why it is Not charging.... everything else I have use advise from Ashley & Roy`s experience with Black Bombers but I am getting there and love the bike.......   

[Johnny4428]

No problem Mo, must have just been photo angle! Or else I need to go to specsavers! 🤣

[mo goldie]

we will say the picture angle..... I was there at specsavers only two days ago....... oh with the mrs Not me LOL

[AshimotoK0]

No they won't do Mo. I think I may have a spare set somewhere but may take me a while to find them.

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I found some of the NOS upgrade parts Mo.

Bit busy at the moment with Cathy's play she has on but will sort out what I have spare in the next couple of days.

[mo goldie]

Hi Ash

well that will be great thank you 

Update on the charging ... ok NOT Charging then .... been working on it today again and went though the wire so made sure I got the colours right as per your instructions LOL.

well this is still Not done anything as the Battery starts off at 12.8 V and get bike running and that go`s down Not even stay the same or go up as ends up about 11.85 V put lights on and it go`s to 11.5 V so i Know there is Nothing going in ha .............. don't Know what to do next Tried all I Know but cant be the battery as had that checked out and as soon as the Bike stops running the battery go`s back up to 12.8 or if I put a trickle charger  on it go`s up and just stays there............ but i have tried as I say......... don`t know if it could be the stator or what ??

oh yellow to yellow from stator to loom ....pink to Brown from stator..... and white to red  and green from rectifier to earth

[McCabe-Thiele (Ted)]

Is the regulator anything like the 400 unit that you can adjust the output voltage on or is there no DC output voltage?

[AshimotoK0]

Is the regulator anything like the 400 unit that you can adjust the output voltage on or is there no DC output voltage?

Totally different charging system Ted ... single phase 400/500/750 are three phase.

[mo goldie]

Hi Ted

Black Bombers never had a Regulator unless you fitted one so No mine don`t have one. On saying that I think Roy fitted one on his tho.

Just been down today and just took all the tank side panel's air filters off carbs etc... as that Nice Bloke Ashley is getting me some Carb parts sorted as Not happy with the running of the bike in General been told that there was an upgrade kit to help the bike run better fingers crossed 

wish I could just find out what's wrong with the dam charging..... I have anther Rectifier which Ash said would do the job so have a look at the pictures Ash and tell me where to put the wires please you know colours on what pins lol. IE. yellow...pink.... brown out of the old Harness as they been put in the plug under the tool box  in the new wires on the newer Stator. oh thats all I got with the wiring Diagram for the rectifier.

And Thanks again Ashley for sorting the carb bits out when you get a chance just let me know..... Oh Hows Cathy's play going 

Cheers Mo

[AshimotoK0]

A problem with 60's single phase charging systems is that the permanent magnets lose magnetism with age.

So a lot of people connect the night time charge booster coil in permanently. as in this diagram.
To ovoid overcharging though it is best to fit a current dumping' regulator as fitted to later 5-speed 450's and CB250/350K. Like this : https://www.ebay.co.uk/itm/204329106467.

There are also aftermarket combined rectifier/regulator combinations but I have no experience of using them.

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[mo goldie]

Hi Ash

just can you tell me what colours to go on what pins LOL on that new rectifier please that's what I need to Know.

Oh got to go out now Mothers day LOL

[AshimotoK0]

Hi Ash

just can you tell me what colours to go on what pins LOL on that new rectifier please that's what I need to Know.

Oh got to go out now Mothers day LOL

OK Yellow and Pink goes to AC on your rectifier.  + and -  DC out of rectifier  go to the  battery.

But what I was trying to tell you is that due to weakened magnestism on stator with age, you may not get a full daylight charge into your battery.

[royhall]

Sorry Mo I don't have a spare set of springs. I knew I had two bags and thought there was a set in each unfortunately there's only one in each bag. They are available from 4into1 in the States but the postage is the problem. If there are other parts you need you could combine them to make it affordable.

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