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SOHC.co.uk Forums => CB500/550 => Topic started by: flatfour on April 25, 2016, 06:36:24 PM

Title: Bottom steering head yolk CB500/4 K1
Post by: flatfour on April 25, 2016, 06:36:24 PM
Does anyone have a bottom fork yolk for a CB500 K1 that they are willing to part with? I took my 500 for MOT today and the tester noticed that one of the lock stops is bent on the lower yolk.

He has passed the bike anyway (it is the same dealership that I have used every time since buying the bike in 2003) but advised that it is replaced. I have checked on the DS and CMSNL sites, however neither has this part.

I believe that this problem must have been there since before I bought the bike, as nothing has happened to it whilst I have owned it. It is only noticeable because the handlebars are closer to the tank on a full right - hand lock than on a full left - hand lock. A check of the lock stops then shows that the left side is slightly bent back, whereas the right side is straight.

I have been told that the dangers of heating it up and trying to straighten it are too great to make the exercise worthwhile, as it is cast and likely to break.

Many thanks in advance for any help that is available.
Title: Re: Bottom steering head yolk CB500/4 K1
Post by: Trigger on April 25, 2016, 08:10:33 PM
This is common on all old bikes. You can just get it welded  ;)
Title: Re: Bottom steering head yolk CB500/4 K1
Post by: MCTID on April 25, 2016, 09:10:48 PM
I agree with Trig.....get it welded........a good Welder will have no problem with it and you can grind it back to the profile you want quite easily.....just measure it up and determine the finished profile before you strip the Yoke/ forks etc.
Title: Re: Bottom steering head yolk CB500/4 K1
Post by: flatfour on April 26, 2016, 08:07:41 AM
Many thanks for the advice, I will wait until the riding season has ended and then take it to our aero engineer, who is a CAA approved welder and seems to be able to weld almost anything.
Title: Re: Bottom steering head yolk CB500/4 K1
Post by: Bryanj on April 26, 2016, 09:03:49 AM
The reason its bent is that somebody at some time has fallen off and the handlebars have been pushed round bending the lug, carefull if you try to straighten it as they usually break off but teh bit cn be easily welded back on---it aint aero science
Title: Re: Bottom steering head yolk CB500/4 K1
Post by: Trigger on April 26, 2016, 09:09:32 AM
If you nip along to your nearest space station, they can knock this job out in a couple of minutes and can do it on the bike ;D ;D
Title: Re: Bottom steering head yolk CB500/4 K1
Post by: flatfour on April 26, 2016, 04:51:47 PM
Many thanks for all of the advice, it is just easy for me to ask the aero engineer to weld it as he visits our hangar a couple of times a week and I am often around there anyway.
Title: Bottom steering head yolk CB500/4 K1
Post by: MickB on May 02, 2016, 09:34:29 AM
I've got a steering stem just restored with POR15, but no steering lock or capacity for one. It's on my 500.
If you want it I'll post just pay for the postage.
Title: Re: Bottom steering head yolk CB500/4 K1
Post by: flatfour on May 02, 2016, 01:21:08 PM
Mick, that's extremely kind of you. Please let me know how much to send and I will do so, either with a cheque or via Pay Pal if you prefer (my daughter has an account, I although I have never opened one). I am in Norfolk, so UK mainland postal or courier rates will apply, whatever they happen to be.

I'm not concerned about the lack of a steering lock, I always carry a "U" lock that fits through the rear wheel and around a shock absorber leg.
Title: Re: Bottom steering head yolk CB500/4 K1
Post by: Trigger on May 02, 2016, 02:00:55 PM
Are you aware that MickB is in Australia ? This is why it is important to list your location ;)
Title: Re: Bottom steering head yolk CB500/4 K1
Post by: MickB on May 02, 2016, 10:35:09 PM
Trigger i believe if you click on my name it shows where I live.
Flatfour I'll find out the cost to post and let you know, try looking in "parts for sale" and eBay and compare.
Title: Re: Bottom steering head yolk CB500/4 K1
Post by: Trigger on May 03, 2016, 06:08:18 AM
Trigger i believe if you click on my name it shows where I live.
Flatfour I'll find out the cost to post and let you know, try looking in "parts for sale" and eBay and compare.

On the USA site it does Mick but, not on this one mate ;)
Title: Re: Bottom steering head yolk CB500/4 K1
Post by: Bryanj on May 03, 2016, 07:29:30 AM
Mick you have to manually enter your location on your profile page
Title: Re: Bottom steering head yolk CB500/4 K1
Post by: SteveD CB500K0 on May 03, 2016, 09:00:23 AM
Both sites are the same - Glenn chooses not to show location on the post sidebar though (I don't know why)

Steve
Title: Re: Bottom steering head yolk CB500/4 K1
Post by: flatfour on May 03, 2016, 10:04:28 AM
Thanks Mick. I've tried far and wide here without success, so I would still like it if it is convenient for you. I will arrange a PayPal transfer via my daughter when we know the cost and practicalities.
Title: Re: Bottom steering head yolk CB500/4 K1
Post by: MickB on May 04, 2016, 01:18:01 AM
Flats I'll be taking out the steering stem today/ tomorrow and then I'll get a cost on the postage.

Still keep looking on eBay etc.
Title: Re: Bottom steering head yolk CB500/4 K1
Post by: flatfour on May 04, 2016, 08:37:02 AM
Mick, much appreciated.
Title: Re: Bottom steering head yolk CB500/4 K1
Post by: MickB on May 05, 2016, 09:42:29 AM
Flatfour I've got the stem out and I'll find out tomorrow re the postage cost back to the old dart.
Title: Re: Bottom steering head yolk CB500/4 K1
Post by: flatfour on May 05, 2016, 06:55:25 PM
Mick, many thanks.
Title: Re: Bottom steering head yolk CB500/4 K1
Post by: MickB on May 13, 2016, 02:24:22 PM
FF I haven't forgotten, just been too busy with my 500, it's finished.

(http://uploads.tapatalk-cdn.com/20160513/e502ee655bb128832dcfae690a2d80b8.jpg)



I hope it's not holding you up too much, maybe some other parts can be done while waiting for the stem.
Title: Re: Bottom steering head yolk CB500/4 K1
Post by: Aly-b on May 13, 2016, 08:22:32 PM
Very nice bike indeed Mick. 8)
Title: Re: Bottom steering head yolk CB500/4 K1
Post by: flatfour on May 13, 2016, 09:30:46 PM
Mick it's fine, there's no hurry. The bike is on the road for the next year with a fresh MOT (annual safety test) but the tester has pointed the damage to the lower yoke out to me as something to be aware of, so I would like to replace it when I am able.
Title: Bottom steering head yolk CB500/4 K1
Post by: MickB on June 29, 2016, 08:15:10 AM
Flat four I feel bad a week has turned into a month.

It doesn't have a steering lock.

Do you still want the yoke?

(http://uploads.tapatalk-cdn.com/20160629/b19079213adfab09eab824f3657b535a.jpg)

I'll get the postage cost tomorrow.

Mick
Title: Re: Bottom steering head yolk CB500/4 K1
Post by: SteveD CB500K0 on June 29, 2016, 09:13:26 AM
Mine has the lock tabs: http://www.sohc.co.uk/index.php/topic,10254.msg73534.html

Not particularly good condition but you are welcome to it for the price of the postage.

Steve
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