Author Topic: CB750 frame question - Sandcast? Import?  (Read 2832 times)

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Offline Just John

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CB750 frame question - Sandcast? Import?
« on: March 30, 2021, 09:55:11 AM »
This past weekend I saw a CB750 frame with what appears to be a very early VIN.  Certainly in the 69-70 range and maybe into sandcast territory.  This frame has a couple of oddities that made me wonder about its origin.  There is a keyed neck lock directly into the side of frame neck and just below the stamped VIN.  It looks factory!  The other odd thing is the build tag is riveted to one of the frame rails directly below the neck.  It too looks factory.  Unfortunately I didn't get any pictures but will in a week or two.  Anyone seen a frame like this?
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Offline 754

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Re: CB750 frame question - Sandcast? Import?
« Reply #1 on: March 30, 2021, 10:03:43 AM »
Never seen built in lock on cb 750.
 Early ones did not have build tag, but they did start before end of 69... probably  still during the sandcast run.
 Early sandcast  had horn on left side..

 And France and other variants , I thimk started around serial # 5000.
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Offline 69cb750

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Re: CB750 frame question - Sandcast? Import?
« Reply #2 on: March 30, 2021, 12:11:47 PM »
Quote
Anyone seen a frame like this?
Fork lock is in the lower tree.
They lost the key and installed a new fork lock.
Post photos and vin.

Offline Just John

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Re: CB750 frame question - Sandcast? Import?
« Reply #3 on: March 30, 2021, 12:30:50 PM »
Never seen built in lock on cb 750.
 Early ones did not have build tag, but they did start before end of 69... probably  still during the sandcast run.
 Early sandcast  had horn on left side..

 And France and other variants , I thimk started around serial # 5000.

Horn is on the left side.  I thought the same about France and other countries but the Sandcast folks have been discussing 100 VIN numbers popping up in France.  This lock system really reminds me of a European motorcycle locking system.  It may have been added, if so it looked to be an excellent job.  When I get back from delivering Terry's 71 frame to Florida, I'll try to get pictures.
« Last Edit: March 30, 2021, 12:36:38 PM by Just John »
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Offline Just John

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Re: CB750 frame question - Sandcast? Import?
« Reply #4 on: March 30, 2021, 12:33:24 PM »
Quote
Anyone seen a frame like this?
Fork lock is in the lower tree.
They lost the key and installed a new fork lock.
Post photos and vin.
Highly possible!  I am headed to Florida to drop Terry's frame for shipment to Australia.  When I get back I'll try to get photos and VIN info.  It belongs to a friend.  He told me it came from an old motorcycle shop in Alabama and was in a pile of 10-20 frames when he bought it.  Sure is interesting!
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Offline 754

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Re: CB750 frame question - Sandcast? Import?
« Reply #5 on: March 30, 2021, 01:07:27 PM »
Lock built in was commo  on Euro bikes.
 Dont have my partsbooks handy, not sure if frames for some countries differed.  Ligjting did.
Maker of the WELDLESS 750 Frame Kit
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Kelowna B.C.       Canada

My next bike will be a ..ANFOB.....

It's All part of the ADVENTURE...

73 836cc.. Green, had it for 3 decades!!
Lost quite a few CB 750's along the way

Offline bryanj

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Re: CB750 frame question - Sandcast? Import?
« Reply #6 on: March 30, 2021, 02:48:03 PM »
You may find it says cb750g with a low number making it a european F2
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Remember "Its always in the last place you look" COURSE IT IS YOU STOP LOOKIN THEN!

Offline Just John

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Re: CB750 frame question - Sandcast? Import?
« Reply #7 on: May 02, 2021, 09:26:51 AM »
Mystery partially solved.  We dug it from under 20 or so 750 frames, honeysuckle vines, two copperheads and knee high weeds.  It is an F frame, has the fork lock in the neck and the vin tag is riveted to the frame rail and not the neck.  I thought the horn mount was on the left but it is on the right.  The object I thought was the horn is actually an electrical connection box.  Stock or owner added I am not sure.  I think this might be a French import.  Here's a few pictures taken when I was dodging a really upset copperhead.
« Last Edit: May 02, 2021, 09:29:20 AM by Just John »
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Offline bryanj

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Re: CB750 frame question - Sandcast? Import?
« Reply #8 on: May 02, 2021, 09:42:01 AM »
The plastic box is standard on an f as they fitted a smaller headlamp shell so all the connection had to go elswhere.
Probably not a US  bike as they required build date on the tag
Semi Geriatric ex-Honda mechanic and MOT tester (UK version of annual inspection). Garage full of "projects" mostly 500/4 from pre 73 (no road tax in UK).

Remember "Its always in the last place you look" COURSE IT IS YOU STOP LOOKIN THEN!

Offline Jerry Rxman Griffin aka MuthaF'er

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Re: CB750 frame question - Sandcast? Import?
« Reply #9 on: May 02, 2021, 02:54:49 PM »
That is NOT a US F model. The serial number is higher than FO 1975 US bikes and 76 started with 200xxxx. I have never seen the tag on a cross rail either, just on the neck and it does NOT look anything like a US tag
As of today 3/13/2012 my original owner 75 CB750F has made it through 3 wives, er EX-wives. Free at last.  ;-)

Offline 69cb750

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Re: CB750 frame question - Sandcast? Import?
« Reply #10 on: May 02, 2021, 03:51:04 PM »
Quote
That is NOT a US F model.
True

Quote
The serial number is higher than FO 1975 US bikes and 76 started with 200xxxx.
True

Quote
I have never seen the tag on a cross rail either, just on the neck and it does NOT look anything like a US tag
It is a French frame cadre(french) = frame (usa)

Are these photos from France ?

Offline 69cb750

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Re: CB750 frame question - Sandcast? Import?
« Reply #11 on: May 02, 2021, 04:12:43 PM »
Le problème est vraiment assez simple, le cadre dman est français.

Offline Just John

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Re: CB750 frame question - Sandcast? Import?
« Reply #12 on: May 03, 2021, 08:56:47 AM »
Quote
Are these photos from France ?

The frame is in Atlanta, GA.  It came from a closed Honda dealership in near Birmingham, Alabama.
No record of how it got to the US. 
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Offline Just John

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Re: CB750 frame question - Sandcast? Import?
« Reply #13 on: May 03, 2021, 08:57:56 AM »
The plastic box is standard on an f as they fitted a smaller headlamp shell so all the connection had to go elswhere.
Probably not a US  bike as they required build date on the tag

Thanks for the info on the plastic box.  I had no idea! 
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Offline Stev-o

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Re: CB750 frame question - Sandcast? Import?
« Reply #14 on: May 03, 2021, 09:58:46 AM »
Le problème est vraiment assez simple, le cadre dman est français.

Comment le cadre pourrait-il être français?!!
'74 "Big Bang" Honda 750K [836].....'76 Honda 550F.....K3 Park Racer!......and a Bomber!............plus plus plus.........

Offline 69cb750

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Re: CB750 frame question - Sandcast? Import?
« Reply #15 on: May 03, 2021, 10:03:15 AM »
Vous voyez, les Japonais voulaient vendre des motos partout sur la terre verte de Dieu, alors ils ont fait tout ce que les gouvernements demandaient.
Les Français voulaient des verrous de fourche loufoques et différentes étiquettes de cadre.

Offline Stev-o

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Re: CB750 frame question - Sandcast? Import?
« Reply #16 on: May 04, 2021, 02:00:34 PM »
Vous voyez, les Japonais voulaient vendre des motos partout sur la terre verte de Dieu, alors ils ont fait tout ce que les gouvernements demandaient.
Les Français voulaient des verrous de fourche loufoques et différentes étiquettes de cadre.



Vissez les Français! Ils pensent qu'ils sont tellement meilleurs que le reste du monde avec leur nourriture foo foo chic et leur vin Français!
'74 "Big Bang" Honda 750K [836].....'76 Honda 550F.....K3 Park Racer!......and a Bomber!............plus plus plus.........

Offline ekpent

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Re: CB750 frame question - Sandcast? Import?
« Reply #17 on: May 04, 2021, 05:09:18 PM »
 What you talkin bout --

Offline RAFster122s

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Re: CB750 frame question - Sandcast? Import?
« Reply #18 on: May 04, 2021, 08:46:43 PM »
Could have been an American serviceman's bike he bought while stationed abroad and brought back when he returned.

My 11/69 build S90 is that way. It has several layers of US Air Force stickers on it and it is later than Honda was supposed to be making the S90. It also has a headstock data plate identifying the build month and year which no other S90 had.
David- back in the desert SW!

Offline Just John

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Re: CB750 frame question - Sandcast? Import?
« Reply #19 on: May 05, 2021, 11:17:25 AM »
Could have been an American serviceman's bike he bought while stationed abroad and brought back when he returned.

My 11/69 build S90 is that way. It has several layers of US Air Force stickers on it and it is later than Honda was supposed to be making the S90. It also has a headstock data plate identifying the build month and year which no other S90 had.

That is very likely!  The forks are missing so no military base stickers or inspection stickers.  I'm drawn to things that are unusual so I made a deal to buy this frame.  When I get it home I'll look it over for more clues.   Does your S90 have the US pattern fenders?  I saw a couple of S90s in Europe in the 80s that had longer fenders with deeper  side walls and flared ends which I assume were mandated by law.         
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Offline RAFster122s

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Re: CB750 frame question - Sandcast? Import?
« Reply #20 on: May 05, 2021, 09:35:40 PM »
Yes,US fenders and chromed like the last year of production with plastic chain guard and turn signals. Plate indicates it is compliant with US EPA regs in effect at date of build.
David- back in the desert SW!