Honda-SOHC

SOHC.co.uk Forums => CB750 => Topic started by: JamesH on October 02, 2014, 06:57:41 PM

Title: 1970 CB750 K0 (mfg Feb '70)
Post by: JamesH on October 02, 2014, 06:57:41 PM
Evening chaps. Following on from the Sasei / k0 seat thread, here are some quick shots of my unrestored (and unclean) Feb '70 K0....

(http://tapatalk.imageshack.com/v2/14/10/02/92799c992267f16083861988bafc30f7.jpg)

(http://tapatalk.imageshack.com/v2/14/10/02/9fcbde67d8fe3f77a1b77ba0ddfa9f2a.jpg)

(http://tapatalk.imageshack.com/v2/14/10/02/4d908c1cace9dd2af0d9cf1b6fd98bf4.jpg)

(http://tapatalk.imageshack.com/v2/14/10/02/0313cbe5124ed60036030a595d89af09.jpg)

(http://tapatalk.imageshack.com/v2/14/10/02/9441d59a1a0fade0a89a45922d52bbdd.jpg)

(http://tapatalk.imageshack.com/v2/14/10/02/e8d4fccd81434fab5ade616416974f1a.jpg)

(http://tapatalk.imageshack.com/v2/14/10/02/1e1940f4ff2e22cd2c0106b1d1bc94dd.jpg)

(http://tapatalk.imageshack.com/v2/14/10/02/713dd3daf64f86b9619836cab655e31d.jpg)

(http://tapatalk.imageshack.com/v2/14/10/02/cb42a9739cf432f5b605be3e9804b3e2.jpg)

(http://tapatalk.imageshack.com/v2/14/10/02/e68c2d57196eb2a2ad7d360dd9269a21.jpg)

(http://tapatalk.imageshack.com/v2/14/10/02/ce3e3ae5aa21f424f49e1313e8335c13.jpg)

(http://tapatalk.imageshack.com/v2/14/10/02/9df0320532470922566906e698b2773a.jpg)

(http://tapatalk.imageshack.com/v2/14/10/02/d76ddad10e79b05df4a4732d2c050e7a.jpg)

(http://tapatalk.imageshack.com/v2/14/10/02/17cc0c55ab5c134ffa7a632bf0f73648.jpg)

(http://tapatalk.imageshack.com/v2/14/10/02/df53a8509ff251c1e4dcca8196099f37.jpg)

(http://tapatalk.imageshack.com/v2/14/10/02/4724334f25f889ba626be0e5d86bca7e.jpg)






Title: Re: 1970 CB750 K0 (mfg Jan '70)
Post by: MarkCR750 on October 02, 2014, 07:20:06 PM
Looks very good for a 44 year old, light restoration preserving patina or full blown restore planned?
Title: Re: 1970 CB750 K0 (mfg Jan '70)
Post by: JamesH on October 02, 2014, 07:24:46 PM
Just cleaning / servicing / recommissioning as it's too original to restore imho. #3 pipe is badly rotted at the downpipe / silencer junction so the pipes may be beyond economical repair. Luckily I had a set of decent hm300's on another bike that I've kept for this one.
Title: Re: 1970 CB750 K0 (mfg Jan '70)
Post by: UK Pete on October 02, 2014, 07:41:15 PM
What a great bike, far to good to do the full restoration,  great patina a real survivor, is it for sale james?
pete
Title: Re: 1970 CB750 K0 (mfg Jan '70)
Post by: JamesH on October 02, 2014, 07:43:09 PM
Completely agree Pete. No not for sale this one's a keeper...
Title: Re: 1970 CB750 K0 (mfg Jan '70)
Post by: UK Pete on October 02, 2014, 07:47:12 PM
Good on ya fella i am envious , i like unrestored bikes because they are usable with out the fear of messing up, and they have a story to tell
pete
Title: Re: 1970 CB750 K0 (mfg Jan '70)
Post by: MarkCR750 on October 02, 2014, 07:52:34 PM
Glad you said that James, so much nicer to see a light restoration (whenever possible), I saw this Indian at a recent show, I mean it's terrific but IMO would have been so much nicer if it had retained some of it's 80 years of patina, the other photo shows a couple of older models that are probably beyond saving though.
Title: Re: 1970 CB750 K0 (mfg Jan '70)
Post by: JamesH on October 02, 2014, 08:10:18 PM
Thanks guys. Won't be much  progress for a few weeks yet, other than a light mist of acf50 to keep the corrosion at bay. J
Title: Re: 1970 CB750 K0 (mfg Jan '70)
Post by: Green1 on October 02, 2014, 10:09:13 PM
Great bike James.
I love Yankee imports there normally in amazing condition. 
Bin the fairing and your good to go.
   
Mick
Title: Re: 1970 CB750 K0 (mfg Jan '70)
Post by: AshimotoK0 on October 03, 2014, 12:23:19 AM
Nice one James. Looks totally unmolested. Nice mirrors with PAT no. on Interesting it does not have wrinkle tank but definitely looks original. Mines was the same (Oct 69) and I am convinced the tank is original. Have you put a magnet near the filler cap to see if it's Antimon (pot-metal, Mickey Mouse metal bla blah or steel?

Cheers ... Ash
Title: Re: 1970 CB750 K0 (mfg Jan '70)
Post by: UK Pete on October 03, 2014, 06:43:43 AM
I am sure that i read the later k0,s had non wrinkle tanks, i think when the front guard changed to single cut, and the plastic chain guard got extended
pete
Title: Re: 1970 CB750 K0 (mfg Jan '70)
Post by: AshimotoK0 on October 03, 2014, 06:55:35 AM
I am sure that i read the later k0,s had non wrinkle tanks, i think when the front guard changed to single cut, and the plastic chain guard got extended
pete

Wouldn't have thought a 'Jan 70 manufacture  K0 was a later one Pete?

Cheers ... Ash
Title: Re: 1970 CB750 K0 (mfg Jan '70)
Post by: Spitfire on October 03, 2014, 09:29:07 AM
That brings back some memories and makes me want to reach for some spanners and polish !

Cheers

Den
Title: 1970 CB750 K0 (mfg Jan '70)
Post by: JamesH on October 03, 2014, 09:57:01 AM
Just realised I've been lying all along - she's actually a Feb '70 mfg date not Jan....prob explains the lack of a wrinkle tank...how do I change the title of the thread?...duh
Title: Re: 1970 CB750 K0 (mfg Jan '70)
Post by: SteveD CB500K0 on October 03, 2014, 10:03:36 AM
...how do I change the title of the thread?...duh

Go back to the first post and edit the title - that is the phrase that is picked up by the forum software.

I've just done this with my 500/4 K0/K1 thread.

Steve
Title: Re: 1970 CB750 K0 (mfg Jan '70)
Post by: UK Pete on October 03, 2014, 10:32:54 AM
I am sure that i read the later k0,s had non wrinkle tanks, i think when the front guard changed to single cut, and the plastic chain guard got extended
pete

Wouldn't have thought a 'Jan 70 manufacture  K0 was a later one Pete?

Cheers ... Ash
It is 6 months into production of this model, so I suppose mid run would be more acurate as it was in production for a year, some where during mid run they lost the #8 bolts , maybe the sane time as the chain guard and single cut fender
Over to you James does this bike have the early features or later features

Pete
Title: Re: 1970 CB750 K0 (mfg Feb '70)
Post by: JamesH on October 03, 2014, 11:02:03 AM
I'll properly document the bike in a few weeks - as I said I'm resisting the urge to start digging into the bike at the moment so she'll take a back seat whilst I get the other projects sorted. To be fair I'm still not 100% on what constitutes early / later features on a Diecast K0?

J
Title: Re: 1970 CB750 K0 (mfg Feb '70)
Post by: AshimotoK0 on October 03, 2014, 11:27:01 AM
I'll properly document the bike in a few weeks - as I said I'm resisting the urge to start digging into the bike at the moment so she'll take a back seat whilst I get the other projects sorted. To be fair I'm still not 100% on what constitutes early / later features on a Diecast K0?

J

My UK K0 is 1010382 and is Oct '70 mfg. so I image the K0 diecast  production started around Sept '69 and finished about July '70.

Looks like post title has changed from original Jan70 to Feb70, which probably makes a difference

According to Steve Swan on the Sandcastonly site:

All sandcasts had 'wrinkle' tanks.

If i recall correctly, smooth tunnel tanks were fitted approximately around vin 14xxx, Dec.69.

Gold is a 1970 color, not used on 1969 mfgr bikes, at least that i am aware of - yet. 

According to the parts manual, gold came into use at vin 19210 which would be a circa Jan.1970 vin.

Cheers .. Ash
Title: Re: 1970 CB750 K0 (mfg Feb '70)
Post by: JamesH on October 03, 2014, 11:54:41 AM
Thanks Ash. Just to cloud the issue a little I also have a Jan '70 K0 (has been painted red) that has a wrinkle tank which is apparently original to the bike...hmmmm..
Title: Re: 1970 CB750 K0 (mfg Jan '70)
Post by: JamesH on October 03, 2014, 12:14:31 PM
...how do I change the title of the thread?...duh

Go back to the first post and edit the title - that is the phrase that is picked up by the forum software.

I've just done this with my 500/4 K0/K1 thread.

Steve
Thanks Steve have updated the thread title now...
Title: Re: 1970 CB750 K0 (mfg Feb '70)
Post by: RGP750 on October 03, 2014, 12:51:45 PM
Looks like  "my" k0 should have a smooth tank then. Dec 69 0116596 ;D
hope you agree.
Title: Re: 1970 CB750 K0 (mfg Feb '70)
Post by: JamesH on October 03, 2014, 01:44:02 PM
Looks like  "my" k0 should have a smooth tank then. Dec 69 0116596 ;D
hope you agree.
I would have thought it would have originally had a wrinkle tank Richard..
Title: Re: 1970 CB750 K0 (mfg Feb '70)
Post by: AshimotoK0 on October 03, 2014, 02:43:07 PM
Looks like  "my" k0 should have a smooth tank then. Dec 69 0116596 ;D
hope you agree.
I would have thought it would have originally had a wrinkle tank Richard..

Debatable given Steve's change over figure .. if indeed correct.


Cheers ... Ash
Title: Re: 1970 CB750 K0 (mfg Feb '70)
Post by: JamesH on October 03, 2014, 05:46:14 PM
I'll defer to the K0 masters...:-). What do I know ..:-)
Title: Re: 1970 CB750 K0 (mfg Feb '70)
Post by: AshimotoK0 on October 03, 2014, 06:13:30 PM
I'll defer to the K0 masters...:-). What do I know ..:-)
Don't think there are any masters James only theorists and don't think there is ever going to be a decisive answer. In reality it doesn't really add to the exterior appearance. It's a bit like the 2 hole rear hub, you can't see them on an assembled bike anyway & in reality not sure how much effects the final price. If someone really wants a K0 and the bits you normally  see are OK, chances are their heart is going to rule their head and they will buy it anyway.

Cheers .. Ash
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