Topic: Is a bike a sandcast or just the motor?

[mraction]

Hello, I'm new here. Just picked up a 1970 cb750. vin # cb7501002658
I think the motor is newer #cb75e2706893
Is missing carbs & oil cover. Does this thing have any value?
Any help would be appreciated.

[Cougars750F0]

Welcome to the forum. Here is the list of vin numbers and engine numbers found in this forum under "Bikes" on the home page. http://www.sohc4.net/cb750k-serial-numbers/

[Stev-o]

Welcome from Lake Travis.

Sandcast is the method the aluminum motor cases were manufactured - cast in sand.  Unfortunately, you have a later motor. It may be worth the effort to find a sandcast motor in the VIN range of your frame and "mate them", value would dramatically rise. But, they can be hard to find and expensive.
Where did you buy it and is it in rideable cond?

[mraction]

Thanks for the reply. I bought it at an estate sale near Cedar Creek Lake. Motor is locked and no carbs. I see on Ebay they refer to gas tanks as sandcast.
Ironically,the bike came from Austin via Del Valle

[Cougars750F0]

Early tanks were referred to as wrinkle tanks found on sand cast models. This is where I step aside and let the true professionals do their magic. Good luck and congratulations!

[Johnie]

Welcome to the board...to find out if you have a wrinkle tank look into the gas tank. If you see wrinkles like in the pic...then you have a very valuable tank.

[Terry in Australia]

Well you've got an early "sandcast" frame number mate, but as has been said, without the correct engine, it's only a parts proposition.

You say it's missing the carbs and oil cover(?) what else is missing? The frame is worth money, as is the forks, tank, (if it's the very rare wrinkle tank without the carb dimples it's worth around $2K) oil tank, speedo and tach, wheels, brake disc, master cylinder, rear shocks, seat, in fact, pretty much everything. If you can't find a correct engine, you can still sell it for parts and make some money. Cheers, Terry.

[mraction]

Once again I thank all of you for your help!!!!!
I'll try and post pics

[Prospect]

Once again I thank all of you for your help!!!!!
I'll try and post pics

Great score.  A decent amount of original parts are still on there which fetch quite a bit of money.  From a distance looks like the tank, front end, frame, shocks etc. 

If you want more info I'd suggest several up close pictures.

Good Luck with the bike.  It's always nice to see one surface.

[ekpent]

Its funny that some of those old ducktail seats just seem to lose their "air". That red foam must not like the Texas heat. Looks like you found some good stuff 

[Stev-o]

Jackpot - Wrinkle tank.   How did I miss that, it's in my area!?

[ekpent]

Jackpot - Wrinkle tank.   How did I miss that, it's in my area!?

Hopefully we will hear the "story" Steve  as that is the fun part of buying these old things. My wife is amazed for some reason that I always remember all the details about buying something be it a bike or maybe a nice antique item.

[Stev-o]

Jackpot - Wrinkle tank.   How did I miss that, it's in my area!?

Hopefully we will hear the "story" Steve  as that is the fun part of buying these old things. My wife is amazed for some reason that I always remember all the details about buying something be it a bike or maybe a nice antique item.

Yeah, it is.  Have you bought some of your bikes at estate sales? I haven't but thinkin I might start hittin them?

[Terry in Australia]

Its funny that some of those old ducktail seats just seem to lose their "air". That red foam must not like the Texas heat. Looks like you found some good stuff 

Yeah you're right Eric, the foam just turns to powder after a few years, good thing is you can buy new foam and covers if you have a good base. Cheers, Terry.

[ekpent]

Jackpot - Wrinkle tank.   How did I miss that, it's in my area!?

Hopefully we will hear the "story" Steve  as that is the fun part of buying these old things. My wife is amazed for some reason that I always remember all the details about buying something be it a bike or maybe a nice antique item.

Yeah, it is.  Have you bought some of your bikes at estate sales? I haven't but thinkin I might start hittin them?

I have got them at auctions and also some at yard sales which is fun. Just talking to folks at these venues can turn up good leads sometimes also.

[Greggo]

Very nice!  If you're patient, and can spend the dough over time you can end up with a very nice bike.  I started with even less for my sandcast project.

[Geeto67]

What do you want to do with the bike? That's the first real question. Sandcast restorations can be very very expensive, but it would be a waste to cut it up for a cafe racer or a chopper. You don't have the original engine, and that's a huge money pit if you go the resto route.

[6adan]

Dose it also have the double cut front finder?

[Tews19]

Wow, nice find! What are your plans? I am curious as well. Looks like the short chain guard too. I think a member here is looking for one...... Do you mind sharing how much you got her for?

Welcome to the site as well!

[CycleRanger]

Great score!

Let the guys over at http://www.cb750sandcastonly.com/ know another one has turned up!
Although I'm sure they've heard by now.. 

[dhall57]

Wow, nice find! What are your plans? I am curious as well. Looks like the short chain guard too. I think a member here is looking for one...... Do you mind sharing how much you got her for?

Welcome to the site as well!

Johnie is looking for a shorty guard on his recent purchase of a early#KO bike.

[754]

 Right now the owner is probably wondering what to do with it, and how much it really is worth...take your time..
 Even with the wrong motor..a 69 750 is still a pretty cool bike.
 Sorta doubt it has the rarer early tank, serial number is probably too high..

[Ujeni]

I'm interested in buying the frame if you are willing to sell it. I will send you a pm.

Thanks!

[Terry in Australia]

Right now the owner is probably wondering what to do with it, and how much it really is worth...take your time..
 Even with the wrong motor..a 69 750 is still a pretty cool bike.
 Sorta doubt it has the rarer early tank, serial number is probably too high..

Yeah maybe Frank, I'm curious though as there were at least 3 different "Wrinkle" tanks, so hopefully the OP can take the tank off and post a pic of the underside for us? Cheers, Terry.

[Johnie]

Yes, thanks hall and tews...I am looking for that shorty chain guard for my KO project. Please let me know if you are going to sell it. Thanks much...