Honda-SOHC

My UK 750K0, CB400F & 450K0 Bomber all came originally with metal plug caps.

Much maligned on here I know but for originality I am fitting them. I managed to get NOS ND ones for my 4 cylinder bikes  but the Bomber ones are hard to come by. also one of my NOS 4-cyl ones got badly damaged with acid. So this week I managed to de-crimp the corroded one and replated a grotty looking Bomber one. Pretty sure my CB250K0's and K2 would have had them but not found any of those yet.

I plan to do some tests on them to see why they tracked over the HT in the wet. It's not obvious looking at them why they would track. I suspect the rubber insert may not have sealed too well but a new part moulded in silicone may fix it. A lot of heathen dealers (like the one who supplied my 1st 400F ) just ripped the metal covers off and damaged the grey plastic body in the process.

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 If so welcome back! 


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https://www.ebay.co.uk/itm/166097029779

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I got this back from Brituro as I needed a pair of RS250RSA downpipes. ( so I panic bought a set via eBay from  one of their  distributors).

Hi Ash,
Brituro silencers ltd has closed, we are temporarily operating under a company called GH Manufacturing
 

Unfortunately we aren’t making downpipes at the moment.

Kind regards

Joe


Joe Dallow|W:www.brituro.co.uk|A:Saunders House,Moor Lane,Witton,Birmingham,B6 7HH|E: Joe@Brituro.co.uk|T: +44 0121 295 2114


From: Ashley Derrick [mailto:ashimoto750@gmail.com]
Sent: 01 March 2024 10:49
To: Joe Brituro
Subject: Hi from Ash

 

Hi Joe ... people of forum telling me Brituro no longer trading

 

Or are you trading under new name?

 

I will be looking fora pair of CB250RSA down-pipes if that's possible.

 

Best wishes Ash 07515 121226

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Any tips on the type of sealer/mastic to use between the the 400F plastic airbox and the rubber inlets/large oval rubber seal.

In the past I suspect I used this black coloured AS1701 silicone sealant. .. however the tube I have is very old and  has gone solid and it's now £50 a tube.

https://uk.farnell.com/acc-silicones/as1701-310ml/sealant-silicone-neutral-cure/dp/8497524

I found I do have some of this black polyurethane 2-part sealant (out of date but still usable) and I will use this unless anyone can suggest something more suitable.

https://uk.rs-online.com/web/p/potting-compounds/1608497


I

I joined HOC last year to get a dating certificate on my C110 and you occasionally get a magazine but not a patch on the Tansha magazine  but VJMC is a lot more expensive on dating  and they are real sticklers on issuing a dating cert. particularly when it comes to the clarity of VIN frame stampings.
 
Anyway, the magazine came yesterday and has a list of 2024 member discounts. Interesting that RS BikePaints give 10% discount to members ... didn't know that. M&P and Central Wheels give 5%
 
The rear outer cover has a full page ad for David Silver Spares ..... but guess who is not in the discount list.

Anyone reading my CB250RSA project resto will see that the bike has one fork stanchion quite badly distorted. I need to quiz the PO in the pub I go to to ask about the history but whatever, I need to check the frame alignment. MCID on here had put me onto an old school bike shop that does realignment but I would like to do some initial checks myself. I was thinking of clamping the frame to a solid bed with a long precision bar mounted through the swinging arm mount tube ( or a bar with cones on it) and adjust the frame position until it is clamped with the bar dead horizontal. (I have a digital inclinometer with dual lasers & accurate to 0.1 degree to set this up). Then mount another bar  with suitable adapters in the headstock tube and check that the bar is at 90 degrees to the horizontal bar in the swinging arm tube. If this measurement is out then worth the 200 mile trip to get it checked out/ realigned. Also been offered another frame with V5 but who is to know if it too is bent? Anyone on here done any DIY frame alignment measurements or can offer any further advice?
The PO (owned from new) did have a donor bike so there is a chance he swapped the stanchions from the donor. I think I will assume that the bottom yoke/ head bearings may be suspect, so I will replace.

Working with stainless steel at my current job I  have had lots of locked threads  .. Ha ha the gall of it Ashimoto

However, a question for SteveD ... how many threads have you had to 'Lock' during your tenure of this forum? Seen a couple this year but don't remember many in previous years?

A lot of it goes over my head anyway . It's all Double-Dutch to me