Author Topic: Sandcast #97 restoration  (Read 202985 times)

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Offline HondaMan

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Re: Sandcast #97 restoration
« Reply #725 on: November 09, 2015, 06:05:38 PM »
The question isn't, "Is your bike up to their level", but "are theirs up to yours"!  :D

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Offline 754

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Re: Sandcast #97 restoration
« Reply #726 on: November 09, 2015, 07:43:39 PM »
I have a question for you( i used to own #572)
Does 576 have the 28 tops on the carbs?.. When I owned the bike I knew there was at least two versions of tops and rings, but was nit aware of the numbered tops...and always wondered if the bike I had, would have had them .
 Your early one looks great..donr be surprised if you get...offers..
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Offline markb

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Re: Sandcast #97 restoration
« Reply #727 on: November 10, 2015, 05:52:06 AM »
The 28 carb tops are not a sandcast thing.  They were actually used on VINs up to 17,342.  Service Bulliten #15 was a recall on the caps, slides, springs and cables.  There were issues where the cables would bind up and the throttle would not close.  So the new slides and springs were longer and the new cables were bigger diameter.  To answer your question, 576 would have had them until (and if) they were recalled.  The only 28 tops that exist are ones that weren't thrown away for the recall, or probably more rarely missed the recall.  I used the 28 tops on my restoration in an attempt to make it like it left the factory.  It won't get ridden enough in my opinion to be a safety issue.
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 calj737

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Re: Sandcast #97 restoration
« Reply #728 on: November 10, 2015, 05:56:05 AM »
It won't get ridden enough in my opinion to be a safety issue.
Boo! Hiss!  ;)
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Offline greenjeans

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Re: Sandcast #97 restoration
« Reply #729 on: November 10, 2015, 07:20:28 AM »
Congrats Mark.   The Peterson museum is first class.   I wouldn't be a bit suprised if Honda contacted you about that beauty as well.  I still plan on making a pilgrimage to see that bike some day.
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Offline markb

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Re: Sandcast #97 restoration
« Reply #730 on: November 12, 2015, 04:24:07 PM »
Did they invite you to the big opening gala?  I'm glad that guy from Petersen convinced you...probably not a better example out there! :)
Since I posted that they didn't I received an invitation but like I said I won't be able to go then.  I'll be on a vacation that was planned long before this came up.  But I thought it was really nice that they did that. 
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 markb

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Re: Sandcast #97 restoration
« Reply #731 on: November 12, 2015, 04:26:02 PM »
It won't get ridden enough in my opinion to be a safety issue.
Boo! Hiss!  ;)
I know your reply was in fun but was that because I would start it up and ride a little or that I wouldn't ride it more than a little?
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 calj737

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Re: Sandcast #97 restoration
« Reply #732 on: November 12, 2015, 04:29:25 PM »
Only that you wouldn't ride it regularly  :) And it was in jest as you deciphered.

Some bikes just deserve to be built and admired for their significance. This is one of those very rare, special bikes. Ride it sure, parades, special events. But I'd stay away from regular traffic with it given the volume of dolts piloting autos these days  :'(
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"Of all tyrannies, a tyranny sincerely exercised for the good of it's victim may be the most oppressive. It may be better to live under robber barons than under omnipotent moral busybodies. The robber baron's cruelty may sometimes sleep, his cupidity may at some point be satiated, but those who torment us for our own good will torment us without end for they do so with the approval of their own conscience." - C.S. Lewis

Offline ogsmakdade

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Re: Sandcast #97 restoration
« Reply #733 on: November 13, 2015, 07:19:29 PM »
Just read this whole thread.  Great work sir, and very informative


Everyone thinks Chuck Norris is bad, but Chuck Norris has not meet Lucky either.  Lucky will round house kick Chuck back to 1969 and pop a wheel with the 1st sandcast while shotgunning a PBR!
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Online Don R

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Re: Sandcast #97 restoration
« Reply #734 on: November 17, 2015, 04:37:16 PM »
 I hope to see it there this winter. There was one in a museum I looked at a couple years ago. My brother remembered I mentioned several incorrect parts on it. Not the case with your bike, Mine is really better than the one in the museum too.
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Offline Stev-o

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Re: Sandcast #97 restoration
« Reply #735 on: November 19, 2015, 05:54:18 AM »
Congrats Mark......that is quite an honor that hasn't been seen around here (that I know of). 
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Offline Sgt.Pinback

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Re: Sandcast #97 restoration
« Reply #736 on: November 19, 2015, 01:25:16 PM »
The 28 carb tops are not a sandcast thing.  They were actually used on VINs up to 17,342.  Service Bulliten #15 was a recall on the caps, slides, springs and cables.  There were issues where the cables would bind up and the throttle would not close.  So the new slides and springs were longer and the new cables were bigger diameter.  To answer your question, 576 would have had them until (and if) they were recalled.  The only 28 tops that exist are ones that weren't thrown away for the recall, or probably more rarely missed the recall.  I used the 28 tops on my restoration in an attempt to make it like it left the factory.  It won't get ridden enough in my opinion to be a safety issue.

Thanks for that info!
I wondered why my 16xxx DC has "28" carbs.

And thanks for that wonderful thread with so many great info!
« Last Edit: November 19, 2015, 01:53:02 PM by Sgt.Pinback »
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Offline markb

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Re: Sandcast #97 restoration
« Reply #737 on: November 27, 2015, 07:43:45 AM »
I ordered a personalized license plate for 97 about 12 weeks ago.  It was only supposed to take 8 weeks to get it but I finally got it.  I don’t know about other states but Minnesota doesn’t stamp them anymore, they print them.  I don’t think they look as good but it still makes a nice finishing touch.  I’m sending to the museum and they will put it on for me.

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 MoMo

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Re: Sandcast #97 restoration
« Reply #738 on: November 27, 2015, 08:14:48 AM »
I ordered a personalized license plate for 97 about 12 weeks ago.  It was only supposed to take 8 weeks to get it but I finally got it.  I don’t know about other states but Minnesota doesn’t stamp them anymore, they print them.  I don’t think they look as good but it still makes a nice finishing touch.  I’m sending to the museum and they will put it on for me.





Very nice touch Mark!...Larry

Offline SOHC4 Cafe Racer Fan

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Re: Sandcast #97 restoration
« Reply #739 on: November 27, 2015, 10:00:51 AM »
Several states now have the non-stamped plates.  They almost look fake or easy to counterfeit.  It's probably the wave of the future along with the bar code at the bottom.  I DO like your plate number!
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1975 CB550F1 frame/CB650 engine hybrid "The Hot Mess" (http://forums.sohc4.net/index.php/topic,150220.0.html)
2008 Triumph Thruxton (http://forums.sohc4.net/index.php/topic,190956.0.html)
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"There are some things nobody needs in this world, and a bright-red, hunch-back, warp-speed 900cc cafe racer is one of them — but I want one anyway, and on some days I actually believe I need one.... Being shot out of a cannon will always be better than being squeezed out of a tube. That is why God made fast motorcycles, Bubba." Hunter S. Thompson, Song of the Sausage Creature, Cycle World, March 1995.  (http://www.latexnet.org/~csmith/sausage.html and https://magazine.cycleworld.com/article/1995/3/1/song-of-the-sausage-creature)

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Offline markb

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Re: Sandcast #97 restoration
« Reply #740 on: November 30, 2015, 10:37:28 AM »
Now that I have some time I will try to catch up on my posts.  The #97 carbs have different vents than the later carbs.  Here is a pic with the #97 carb on the left with a straight vent tube.


Here’s a closer view of the straight tube.  I suspect this feature is quite rare.


Here is the typical angled tube for comparison.


The T-joint between the 1-2 and 2-3 carbs is different too.  The early version with the shorter cross tube is on the left.

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 markb

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Re: Sandcast #97 restoration
« Reply #741 on: December 01, 2015, 07:29:41 AM »
Although not really a sandcast thing, I decided to use “28” carb parts for a restoration more accurate to leaving the factory.  They were replaced in a recall as described in Honda Service Bulletin #15.

As (most of) you all know, this feature is identified with the number 28 embossed on the carb tops as shown on the left.  Also note that the cable adjuster is much smaller (as well as the rubber cap) for a 5mm diameter cable instead of the 6mm diameter replacement.


The tops are thinner and had a gasket.  Maybe someone can chime in on this but I don’t think the gaskets are used on later carbs.  At least I’ve had some sets that didn’t have them.


The caps are also thinner…


…and the slides are shorter.  The “28” slides are 41mm long and the later slides are 46mm long.


And the springs are shorter.  I had a couple of sets of “28” carbs but was missing a couple of springs.  I had some made up to exactly match the originals.  Here are specs.
Material: stainless steel spring wire
Wire diameter, .9mm (.035”)
Free length, 128mm
Outside diameter, 18.5mm
Active coils, 15 ½
Total coils, 13 ½
Closed ends
Load @ 55mm = 1.15 lb.


I had the carbs rebuilt by hondaman and bought some excellent reproduction 5mm throttle cables. At least for now when I twist the throttle and let go it snaps right back.  I think they will be just fine.
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 Roach Carver

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Re: Sandcast #97 restoration
« Reply #742 on: December 01, 2015, 12:44:23 PM »
it will take someone like rain man to remember all these minute details. :)

Offline markb

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Re: Sandcast #97 restoration
« Reply #743 on: December 01, 2015, 03:11:24 PM »
 ;D That's one of the reasons I post. Then I know where to find them when I can't remember.  ;)
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 markb

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Re: Sandcast #97 restoration
« Reply #744 on: December 12, 2015, 01:57:40 PM »
I have some pictures of #97 on display at the Petersen Museum. Sam (ujeni) sent me a link for a blog he saw about the re-opening and the motorcycle display. Here it is if you want to check it out.
http://www.bike-urious.com/the-petersen-museum-is-back/

These first three pictures are from the blog.


They are in chronological order from newest in the back to oldest in the front.


Everyone knows the red sandcasts are fastest and displayed going downhill makes it look even faster.  ;)  :D


The rest of the pictures are from the guy who originally called me and doesn’t work there anymore but happened to be there for the re-opening.


She’s in pretty nice company.  There is a lot of red around.  A blue/green one would have looked nice too.


Here you can see a Triumph Bonneville to the right and there is a Vincent Black Shadow that you can’t see ahead of the Triumph, a couple of my favorite non-Japanese bikes.


I think that’s a couple of Harleys in front and there is a Kawasaki and Ducati behind.


Here are a couple of close-ups.


I like this shot.


I’m really looking forward to going to see it.
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 przjohn

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Re: Sandcast #97 restoration
« Reply #745 on: December 12, 2015, 02:06:03 PM »
We do a fly and ride to CA almost every year. This will be a must do stop this year. Once again, absolutely great job, and congrats on being in this museum.
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Offline SOHC4 Cafe Racer Fan

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Re: Sandcast #97 restoration
« Reply #746 on: December 13, 2015, 12:18:49 AM »
Can't wait to visit the new Petersen and see your bike.  Congrats!  She looks terrific!
1975 CB550K1 "Blue" Stockish Restomod (http://forums.sohc4.net/index.php?topic=135005.0)
1975 CB550F1 frame/CB650 engine hybrid "The Hot Mess" (http://forums.sohc4.net/index.php/topic,150220.0.html)
2008 Triumph Thruxton (http://forums.sohc4.net/index.php/topic,190956.0.html)
2014 MV Agusta Brutale Dragster 800
2015 Yamaha FZ-09 (http://forums.sohc4.net/index.php/topic,186861.0.html)

"There are some things nobody needs in this world, and a bright-red, hunch-back, warp-speed 900cc cafe racer is one of them — but I want one anyway, and on some days I actually believe I need one.... Being shot out of a cannon will always be better than being squeezed out of a tube. That is why God made fast motorcycles, Bubba." Hunter S. Thompson, Song of the Sausage Creature, Cycle World, March 1995.  (http://www.latexnet.org/~csmith/sausage.html and https://magazine.cycleworld.com/article/1995/3/1/song-of-the-sausage-creature)

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1973 CB750K2 "Bionic Mongrel" (http://forums.sohc4.net/index.php?topic=132734.0) - Sold
1977 CB750K7 "Nine Lives" Restomod (http://forums.sohc4.net/index.php?topic=50490.0) - Sold
2005 RVT1000RR RC51-SP2 "El Diablo" - Sold
2016+ Triumph Thruxton 1200 R (http://forums.sohc4.net/index.php/topic,170198.0.html) - Sold

Offline 750K

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Re: Sandcast #97 restoration
« Reply #747 on: December 13, 2015, 07:57:10 AM »
Beautiful!
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Offline Stev-o

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Re: Sandcast #97 restoration
« Reply #748 on: December 13, 2015, 10:32:22 AM »
Congrats, thats quite an honor.

How long will your bike be there?
'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 #97 restoration
« Reply #749 on: December 14, 2015, 05:38:57 AM »
Thanks for all the nice comments guys. It will be there for a year.
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?)