Honda CB750 Sandcast

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Messages - jjb

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1
New Member Introductions / Re: New member introduction
« on: February 27, 2010, 05:26:59 pm »
The head was also pretty interesting .. I know it has a pretty hefty cam since when I heard it running, it would barely idle and had quite a lope when it did.

Here are some shots of the head. It seems someone spent some time on the ports by teardropping the guide areas ..

Intake ...



Exhaust



Combustion chamber ..



I'd be curious as to how modified this motor looks to you guys. Honestly, it's the first and only CB750 I've seen inside so I don't know how typical some of this stuff is.

2
New Member Introductions / Re: New member introduction
« on: February 27, 2010, 05:25:36 pm »
A friend (Mick Jones) went through the motor in 1992 to see what kind of condition it was in. Here are some pictures of the insides ..

First the upper case & crank .. it had an RC engineering clutch in it with bronze plates ..



The crank looked like it had some work on it. The counterweights were polished and rounded. It has 835cc Yosh pistons and aluminum Yosh superrods.








3
New Member Introductions / Re: New member introduction
« on: February 27, 2010, 05:23:58 pm »
Ok, I found some photos that I took almost 19 years ago when I picked up the bike from my friend Woody (in the photo). Woody's the taller guy, I'm the shorter one. Woody bought the bike from our mutual friend Jeff Moo, who in turn had bought the bike from Dick Varner. (Jeff and Dick were high school classmates & riding buddies back in the 70's).



and here's the bike naked ...


4
New Member Introductions / Re: New member introduction
« on: February 27, 2010, 05:23:01 pm »
Hey Steve - tell Corbin I say "hi". Tell him to get his butt to the new track else I'll call him a backmarker!

Jan 2, 2010, 9:29am, Steve Swan wrote:
Follow Joe's advice to identify crankcase type, count the screws fixing cl.cover to crankcase.
 
 

Joe, thanks for the hint, and Steve, you called it. It has 10 screws, so these are diecast cases. (do I get kicked off this board, now? )  ??? ???

Thanks for the m3racing reference! I'll see if he can identify anything in the photos. (that I'll post next) I'll give you a shout soon.

5
New Member Introductions / New member introduction
« on: February 27, 2010, 05:21:49 pm »
Hi - I just found this forum and am starting the process of restoring a kind of unique 750. It's gone through a series of friends dating back to the early '70's when a guy named Dick Varner owned it. Evidently, Dick was an employee of Yoshimura and built this bike from some of their race parts.

Anyway, here are a couple of photos of the numbers .. I have some internal engine and external bike photos to post later. I'm hoping you guys in the know might be able to help me with some history on this bike. I personally know where it's been since about 1977.

Here's the frame number


.. and the engine case numbers .. (sorry about the leaf ..)

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