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Author Topic: Sandcast 4286 Project  (Read 162363 times)

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Offline Stev-o

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Re: Sandcast 42xx Project
« Reply #125 on: June 17, 2013, 05:52:43 PM »
Quote from: Greggo on June 17, 2013, 12:56:56 PM
Motor 371 is in the shop! No pics until Saturday, but it's legit, and looks good!!

Awesome, congrats!  What's the plan of attack?
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'74 "Big Bang" Honda 750K [836].....'76 Honda 550F.....K3 Park Racer!......and a Bomber!............plus plus plus.........

Offline Greggo

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Re: Sandcast 42xx Project
« Reply #126 on: June 17, 2013, 06:41:31 PM »
Quote from: Stev-o on June 17, 2013, 05:52:43 PM
Quote from: Greggo on June 17, 2013, 12:56:56 PM
Motor 371 is in the shop! No pics until Saturday, but it's legit, and looks good!!

Awesome, congrats!  What's the plan of attack?

Thanks :D :D Not sure.  I'll probably pull the valve cover and check in there next trip and take lots of pics.  It's definitely not a K0 head...there's a bolt hole, but no bolt.  So, maybe it still has the sandcast cylinders???  Even if it's bored out, I can replace the sleeves and go back to stock.  If I end up rebuilding it, I will go as close to stock as possible.
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Offline Greggo

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Re: Sandcast 42xx Project
« Reply #127 on: June 17, 2013, 07:37:19 PM »
Really looking for some K0 forks...even just the lowers.
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Offline Prospect

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Re: Sandcast 42xx Project
« Reply #128 on: June 17, 2013, 08:01:20 PM »
Quote from: Greggo on June 17, 2013, 12:56:56 PM
Motor 371 is in the shop! No pics until Saturday, but it's legit, and looks good!!

Jealous. 
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1969 CB750  Sandcast #256
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Offline 01Thomas

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Re: Sandcast 42xx Project
« Reply #129 on: June 18, 2013, 10:56:18 AM »
Hi
What makes K0 forks different to K1 and later types?

Quote from: Greggo on June 17, 2013, 07:37:19 PM
Really looking for some K0 forks...even just the lowers.
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1971 Honda CB750 Four K1 [Engine: CB750E-1113521 / Frame: CB750-1113838]
1977 Seeley Honda CB750F (F1) [Engine: CB750E-2551214 / Frame No: SH7-655F]

'96 Yamaha YZF750SP & '81 Moto Guzzi SP1000 & '80 Moto Guzzi 850 LeMans II & '82 Bimota KB-3 [Frame No 49] & '66 Ducati 50 SL/1 & '53 Miele K-50 & '38 Miele 98

Offline Greggo

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Re: Sandcast 42xx Project
« Reply #130 on: June 18, 2013, 11:24:08 AM »
Quote from: 01Thomas on June 18, 2013, 10:56:18 AM
Hi
What makes K0 forks different to K1 and later types?

Quote from: Greggo on June 17, 2013, 07:37:19 PM
Really looking for some K0 forks...even just the lowers.

Check out the difference in the transition just below where the fork boot goes around the fork leg...there is more of a step on the K0 forks, and a smoother transition on the K1 legs.

K0 Forks:


My K1 forks on the bike:
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Offline 01Thomas

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Re: Sandcast 42xx Project
« Reply #131 on: June 18, 2013, 11:40:27 AM »
OK thanks.
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1971 Honda CB750 Four K1 [Engine: CB750E-1113521 / Frame: CB750-1113838]
1977 Seeley Honda CB750F (F1) [Engine: CB750E-2551214 / Frame No: SH7-655F]

'96 Yamaha YZF750SP & '81 Moto Guzzi SP1000 & '80 Moto Guzzi 850 LeMans II & '82 Bimota KB-3 [Frame No 49] & '66 Ducati 50 SL/1 & '53 Miele K-50 & '38 Miele 98

Offline Greggo

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Re: Sandcast 42xx Project
« Reply #132 on: June 18, 2013, 05:16:41 PM »
I'm noting this for myself: Frame 4286 likely came from Honda with motor 4491.
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Offline Stev-o

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Re: Sandcast 42xx Project
« Reply #133 on: June 18, 2013, 06:17:14 PM »
Quote from: Greggo on June 18, 2013, 05:16:41 PM
I'm noting this for myself: Frame 4286 likely came from Honda with motor 4491.

How did you determine this?
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'74 "Big Bang" Honda 750K [836].....'76 Honda 550F.....K3 Park Racer!......and a Bomber!............plus plus plus.........

Offline Greggo

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Re: Sandcast 42xx Project
« Reply #134 on: June 18, 2013, 06:26:33 PM »
Quote from: Stev-o on June 18, 2013, 06:17:14 PM
Quote from: Greggo on June 18, 2013, 05:16:41 PM
I'm noting this for myself: Frame 4286 likely came from Honda with motor 4491.

How did you determine this?

SOOC VIN directory.  It was registered on there by someone a long time ago. 
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Offline Stev-o

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Re: Sandcast 42xx Project
« Reply #135 on: June 18, 2013, 06:34:07 PM »
Quote from: Greggo on June 18, 2013, 06:26:33 PM
Quote from: Stev-o on June 18, 2013, 06:17:14 PM
Quote from: Greggo on June 18, 2013, 05:16:41 PM
I'm noting this for myself: Frame 4286 likely came from Honda with motor 4491.

How did you determine this?

SOOC VIN directory.  It was registered on there by someone a long time ago. 

interesting. BTW, how many are currently registered or around?
7414 or so were made, right?
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'74 "Big Bang" Honda 750K [836].....'76 Honda 550F.....K3 Park Racer!......and a Bomber!............plus plus plus.........

Offline markb

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Re: Sandcast 42xx Project
« Reply #136 on: June 19, 2013, 06:01:57 AM »
Quote from: Stev-o on June 18, 2013, 06:34:07 PM
interesting. BTW, how many are currently registered or around?
7414 or so were made, right?
That's right.  According to the SOOC site, there are 377 complete sandcasts and a total of 485 records (frames, engines and complete bikes) registered.
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1969 CB750 sandcast #97 restored - Sold Restoration thread link
1969 CB750 sandcaxt #576 - Sold
1969 CB750 sandcast #1553 - Sold
1969 CB750 sandcast #1990 - Sold
1969 CB750 sandcast #5383 restored - Sold Restoration thread link
1970 CB750 K0 restored - Sold
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Offline 01Thomas

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Re: Sandcast 42xx Project
« Reply #137 on: June 19, 2013, 12:16:06 PM »
OK, I need some help here: What is "SOOC" and can you send us a link to this page?

regards
Thomas

 - - - - - - -
Quote{Quote from: Stev-o on June 18, 2013, 08:17:14 PM
    Quote from: Greggo on June 18, 2013, 07:16:41 PM
        I'm noting this for myself: Frame 4286 likely came from Honda with motor 4491.

    How did you determine this?

SOOC VIN directory.  It was registered on there by someone a long time ago.  }
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1971 Honda CB750 Four K1 [Engine: CB750E-1113521 / Frame: CB750-1113838]
1977 Seeley Honda CB750F (F1) [Engine: CB750E-2551214 / Frame No: SH7-655F]

'96 Yamaha YZF750SP & '81 Moto Guzzi SP1000 & '80 Moto Guzzi 850 LeMans II & '82 Bimota KB-3 [Frame No 49] & '66 Ducati 50 SL/1 & '53 Miele K-50 & '38 Miele 98

Offline markb

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Re: Sandcast 42xx Project
« Reply #138 on: June 19, 2013, 12:22:02 PM »
Quote from: 01Thomas on June 19, 2013, 12:16:06 PM
OK, I need some help here: What is "SOOC" and can you send us a link to this page?
It's Sandcast Only Owners Club.
http://www.cb750sandcastonly.com/
Sorry for contributing to this thread getting a little off track.
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1969 CB750 sandcast #97 restored - Sold Restoration thread link
1969 CB750 sandcaxt #576 - Sold
1969 CB750 sandcast #1553 - Sold
1969 CB750 sandcast #1990 - Sold
1969 CB750 sandcast #5383 restored - Sold Restoration thread link
1970 CB750 K0 restored - Sold
2010 H-D Tri Glide Ultra Classic (Huh?)

Offline 01Thomas

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Re: Sandcast 42xx Project
« Reply #139 on: June 19, 2013, 12:57:15 PM »
OK, thanks Mark!
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1971 Honda CB750 Four K1 [Engine: CB750E-1113521 / Frame: CB750-1113838]
1977 Seeley Honda CB750F (F1) [Engine: CB750E-2551214 / Frame No: SH7-655F]

'96 Yamaha YZF750SP & '81 Moto Guzzi SP1000 & '80 Moto Guzzi 850 LeMans II & '82 Bimota KB-3 [Frame No 49] & '66 Ducati 50 SL/1 & '53 Miele K-50 & '38 Miele 98

Offline Greggo

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Re: Sandcast 42xx Project
« Reply #140 on: June 21, 2013, 03:06:58 PM »
Quote from: markb on June 19, 2013, 12:22:02 PM
Quote from: 01Thomas on June 19, 2013, 12:16:06 PM
OK, I need some help here: What is "SOOC" and can you send us a link to this page?
It's Sandcast Only Owners Club.
http://www.cb750sandcastonly.com/
Sorry for contributing to this thread getting a little off track.

No worries Mark!  Do you have any experience with the Yamiya RH switch?  It looks good for the price, but I'd like to know if its significantly different than the originals. 

I'll have pics of the motor tomorrow.
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Offline Greggo

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Re: Sandcast 42xx Project
« Reply #141 on: June 22, 2013, 02:35:55 PM »
The results are in...I farking scored.












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Offline Greggo

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Re: Sandcast 42xx Project
« Reply #142 on: June 22, 2013, 02:38:16 PM »
It turns over, and once I got under the valve cover, I was very happy to see what I did.  Everything looks great.







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Offline 754

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Re: Sandcast 42xx Project
« Reply #143 on: June 22, 2013, 02:39:33 PM »
Dibs on point cover if you sell it..
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Offline Greggo

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Re: Sandcast 42xx Project
« Reply #144 on: June 22, 2013, 02:41:31 PM »
Quote from: 754 on June 22, 2013, 02:39:33 PM
Dibs on point cover if you sell it..

Frank,

I have the whole finned set off and ready to sell, less the starter cover (didn't get to pull it today)  You have first dibs if you want the set.  I'll post them later in the For Sale, and send you a PM when I have pics. ;)
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Offline Retro Rocket

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Re: Sandcast 42xx Project
« Reply #145 on: June 22, 2013, 03:04:47 PM »
Great score.... ;)
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Offline Stev-o

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Re: Sandcast 42xx Project
« Reply #146 on: June 22, 2013, 06:33:01 PM »
Quote from: Retro Rocket on June 22, 2013, 03:04:47 PM
Great score.... ;)

+1.  I would clean clean clean....
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'74 "Big Bang" Honda 750K [836].....'76 Honda 550F.....K3 Park Racer!......and a Bomber!............plus plus plus.........

Offline Dream750

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Re: Sandcast 42xx Project
« Reply #147 on: June 22, 2013, 08:50:05 PM »
Congrats on your sandcast engine! :) 

Thought you might like to see serial number #365, photo was taken from the engine Cycle X was parting out last year.   



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Offline Greggo

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Re: Sandcast 42xx Project
« Reply #148 on: June 23, 2013, 06:52:32 AM »
Thank you for sharing!  That is very cool, and I didn't know they had such an early motor.  It's cool to think these are only six numbers apart and may have been born on the same day...likely in the first week or two of production.
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Offline Greggo

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Re: Sandcast 42xx Project
« Reply #149 on: June 24, 2013, 08:36:35 AM »
Figured out the motor has a 'fat lip' alternator cover...Bummer...So, it has the wrong head, clutch cover, alternator cover, and cylinders :'( :'(

In better news...have I mentioned I love this forum?  Well, I do.  Another couple scores from a Parts Wanted listing I put up here.  Found K0 forks, and a really nice K0 front fender...no cuts but it's in extremely nice shape for its age.
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