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Author Topic: 1970 CB750 K0 - light restoration  (Read 18400 times)

Offline JamesH

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1970 CB750 K0 - light restoration
« on: April 28, 2015, 02:48:43 PM »
Couldn't resist the opportunity to post the first thread in the new 'projects' section.

Currently conducting a light restoration of a March '70 CB750 K0.

Started with this...



After a few hours of stripping...



Currently looks like this....


Will post updates and back-fill some of the details shortly....
« Last Edit: April 28, 2015, 04:57:15 PM by Jamesh_sussex »
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Offline UK Pete

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Re: 1970 CB750 K0 - light restoration
« Reply #1 on: April 28, 2015, 06:23:25 PM »
Nice work James,
I love stripping bikes down, its the building back up thats a pain
pete
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Offline mike the bike

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Re: 1970 CB750 K0 - light restoration
« Reply #2 on: April 28, 2015, 06:35:51 PM »
It's the building back up again that's most rewarding.
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Where's that 10mm socket got to?

Offline UK Pete

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Re: 1970 CB750 K0 - light restoration
« Reply #3 on: April 28, 2015, 06:44:39 PM »
Quote from: mike the bike on April 28, 2015, 06:35:51 PM
It's the building back up again that's most rewarding.

Yes i know, i just cant find time to do any of mine so it has now become a pain
pete
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Offline JamesH

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1970 CB750 K0 - light restoration
« Reply #4 on: April 28, 2015, 06:51:04 PM »
Well I'm in parts gathering / buying mode at the moment. Frame has been blasted and is with the painters being etch primed and then painted semi-gloss black.

The mrs wasn't exactly chuffed that I used #1 daughters bedroom as overnight storage between blasting / paint ha ha...

And looks like they were using mig welding on the early frames in late '69 / early '70





« Last Edit: April 28, 2015, 07:21:28 PM by Jamesh_sussex »
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Offline Green1

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Re: 1970 CB750 K0 - light restoration
« Reply #5 on: April 28, 2015, 08:00:27 PM »
Got to love Jap welding  :o

Mick
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Offline JamesH

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Re: 1970 CB750 K0 - light restoration
« Reply #6 on: April 28, 2015, 08:05:09 PM »
I think the guy who did my K0 may have been slightly blind...
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Offline Green1

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Re: 1970 CB750 K0 - light restoration
« Reply #7 on: April 28, 2015, 08:09:59 PM »
Amazingly mine only lasted 44 years before braking.Do you think Honda will repair it under warranty?
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Offline JamesH

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Re: 1970 CB750 K0 - light restoration
« Reply #8 on: April 28, 2015, 09:16:24 PM »
Yeah was planning to walk into my local honda dealer with the bare frame and have it out with them...
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Offline martin_uk

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Re: 1970 CB750 K0 - light restoration
« Reply #9 on: April 28, 2015, 10:08:29 PM »
Great detailed images.

Interested to see progress.
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Offline Tiny Tim

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Re: 1970 CB750 K0 - light restoration
« Reply #10 on: April 29, 2015, 07:23:39 PM »
James can you give an idea on how much you pay for the frame painting etc. I've asked a couple of places near me for a quote but no one has given me a straight answer.
Cheers
Tim
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Offline JamesH

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Re: 1970 CB750 K0 - light restoration
« Reply #11 on: April 29, 2015, 07:42:27 PM »
Hi Tim. Well the blasting is about £100-120 and the painting is £250-350 depending on prep required. That's based on two coats of zinc etch priming and then the semi-gloss. Having said that the painter is doing me a favour and doesn't normally do (or want to do) bike frames - so I don't think he'll be open to me passing on details.....
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Offline mike the bike

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Re: 1970 CB750 K0 - light restoration
« Reply #12 on: April 29, 2015, 08:16:59 PM »
I've just stripped down my GS650G Katana prior to powder coating.   Plenty evidence of MIG wire about,  which I ground off.
Dropped the frame, yokes, various brackets, footrests etc, got quoted £190 but I knocked him down to £160.
It's still more than I thought,  so I weighed in all my scrap stainless and wash pumps and got  £90 for the lot.
Roll on Monday when I can collect it all.
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Where's that 10mm socket got to?

Offline Tiny Tim

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Re: 1970 CB750 K0 - light restoration
« Reply #13 on: April 29, 2015, 08:22:16 PM »
Thanks for the info James. I'm sure I can find a local painter, but as I said before they're not very forthcoming with prices for some reason. There is a local blasting company who offer a same day service. So I'm half way there.
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Offline JamesH

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Re: 1970 CB750 K0 - light restoration
« Reply #14 on: April 29, 2015, 09:17:57 PM »
Yeah it's a tricky one to price I think - most painters want to see the condition of the frame so they know how much rectification is needed to get a quality finish I guess.
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