My free bike and its story

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My free bike and its story

samir_nayanajaad
So this bike has a story. (who doesn't like a good story?)  My dad saved this CB from a salvage yard some 16 or so years ago with the intention of getting it back together.  Only problem was the reason it was in the salvage yard in the first place was because it had been through a flood.  My dad picked it up along with a Suzuki 500 2 stroke also in the same flood for like 20 or 30 bucks for the pair.  The motor was seized up along with the whole exhaust, and cylinders filled with sand.  Needless to say there was A LOT of work to be done.  He got both bikes running even rode around the Suzuki for quite a while, but couldn't do the same with the CB due to too many missing parts (as you can see in the pics) and not enough time or money to fix/replace them.

So jump ahead 7 or so years the bikes are now sitting long forgotten and me being 15 or 16 start to think, hey I want to ride that.  So I ask my dad if he wants to start to fix it up, and HELL NO your not killing yourself on that thing, is the reply. Me being persistent for a few months ended up with a compromise, my moms old Honda K3 Scrambler.  It didn't need nearly as much work and its a 350.  So begins a summer of me getting that 350 running good enough to tool around on dirt roads.  I mostly wanted to learn to ride a bike but also kept hope that if I didn't wreck the 350 maybe that 750 could still be mine.

Well I ended up going to college and what else so the bike sat for a few more years.  I didn't give much thought to it over those years, but always wanted to get back to it once I graduated and had a job. Then one day while at home our phone rang.  I picked it up and was rather surprised to hear my aunt who had years ago divorced my uncle on the other end.  My uncle had just been killed while riding his Harley.  I have never seen words completely and totally devastate someone like when I gave my dad that news.

It took my dad years before he would even look at a motorcycle again. At that point I knew that 750 would never be mine, and I didn't care. After seeing what my uncles death did to my dad I didn't want to think what would happen to him if it were ever me.

So I went on about my life, graduated college, got a job, got fired from that job, another job, and then engaged.  That pretty much brings us to a few months ago.  I was back home and went poking around in the old workshop looking for some random thing I thought was stored in there. Then I saw the CB again.  Didn't think much at the time, but for some reason when I got back to my place I just hopped online and searched up CB 750.  Found some youtube videos of CB's and some other sites that I browsed around on. On one of the sites someone mentioned Carpy and his bikes.  So after a little help from Google and a few minutes on Carpy's web site (im sure you all know it no need to post it here) I saw his Koppa Cafe. I saw that supercharged copper flake sculpture and knew I had to get that CB back up and going.

I have been looking for parts, manuals, videos, how to's you name it for a CB 750 for months now.  Also in those months I have been warming my dad up to the idea of working on that bike.  At first he said no, end of story. I fully expected that, but he gradually warmed up to the idea after we talked several times.  He's always loved bikes and working on anything with wheels and and engine from when he was a kid, and I know he has always wanted to ride that CB.  

Now that's out of the way to what you all want to see, the bike.



Hey I did tell you it was in a flood and then sat for 16 years.

And this being my first post I need to ask a question.  This bike is giving me mixed signals and I need to know what I got. Though you cant see in that pic it does have disk breaks in the back so at first I thought I had a Super Sport. But it's a 75 on the tag I didn't think Honda made a SS in 75 did they? Next is the engine. I plan on rebuilding it so is there a way I can tell what engine this thing has? To me it looks like a regular old K# engine but if it is an ss I need to know.  I found one tag on the transmission area right above where the (starter?) cables come out of the case.  It had CB750E on it.

I have lots more pics but didn't want to load up one post with a ton of them.  If you guys can direct me to something that can help me identify the frame and engine 100% that's what I need at the moment.  Also the bike is 2+ hour drive away so no I cant just hop over to my dads place and grab a quick photo.

Ok one more pic of it with a gas tank and after we took an air hose to it, can't let that one ugly pic be the only one on here of it.






Why does it say paper jam when there is no paper jam? I swear to god one of these days, I just kick this piece of shit out the window.
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Re: My free bike and its story

samir_nayanajaad
This post was updated on .
I found where I downloaded the shop manual and looked up my frame number, looks like its an F1. I just need to know if the engine matches the frame. I know there is a good chance the engine could have been swapped out in the past and I want to make sure it is an SS all the way.

I also got all the pics I took loaded to my computer so here are a few more. Mostly close ups.


I think the wheel, disk and caliper are off a Suzuki 1100.


Wiring harness cut up going to have to get a new one


little rust inside and out on the take should clean up nicely


This is the number I found on the engine hope that helps identify what engine this is
Why does it say paper jam when there is no paper jam? I swear to god one of these days, I just kick this piece of shit out the window.
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Re: My free bike and its story

Re-run
Administrator
Looks like the engine is a 76F motor.
The ride IS the adventure. The destination is just to get gas!
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Re: My free bike and its story

shinyribs
Administrator
That is an awesome story!I love a good story!My Dad owned four of these things back when he was buying them new out of the show room.Sold his newest one,with only 357 miles,when my Mom turned up pregnant with their first child,my sis.I always thought they were coll and a friend of mine GAVE me one about a month ago.I know the feeling of a Father that doesn't want you to ride...same here.Sorry Pops,gotta do it!Your rear brake caliper is identical to mine.My bike is a '76 ss.And I am EXTREMELY jealous of your tank!So clean!Good luck-have fun-be careful!You came to the right place.I knew squat when i came here.Still know very little,but there is alot of super nice and super savvy guys here. They can help fo' sho'! Later!
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Re: My free bike and its story

TOOLS1
Administrator
In reply to this post by samir_nayanajaad
Cool story. It seems that, you have an F model. If your engine number is within 500, or, so off the frame number it should be original. I have an 81 Suzuki GS 750, and the wheel looks just like yours. Also check out vintagecb750.com , for parts. They have the harness, for $75.00.
TOOLS
Life is not about the number of breaths, you take, but the moments that take your breath away.
I don't have an anger problem. I have an idiot problem. Hank Hill
Never confuse education for intelligence.
Happiness is a belt fed weapon.
I just can't imagine what could go wrong.
No fire? No explosions? So whats the point of your story?
Those who are too smart to engage in politics are punished by being governed by those who are dumber. ~Plato
It couldn't be done, but the darn fool didn't know it, and did it anyway.
We all got problems. Ksharp
I like vintage bikes because they take me away from the clutter of technology that I work with everyday and back to a simpler time of mechanical elegance and simplicity.. "ninadm"
Darkwing Duck: The worst part of public transportation is the Public.
"That is awesome shit there" Re-Run
"Fear nothing, attack everything" Eric Berry
" Oh, you read that on the internet? Clearly it IS a massive problem. Of course it CAN’t be normal operation."

1976 CB 750-A X 2
1977 CB 750-A X 4
1977 CB 750-K
1976 CB 750 F
1981 CB 750
1966 Kawasaki SG 250
1981 KZ 750 LTD
1973 CB 350
1979 CM 185 Twinstar
1982 Honda XL 80
South of Eden (Kansas City MO)
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Re: My free bike and its story

Piute
In reply to this post by samir_nayanajaad
Hello I'm Piute ,enjoyed your story May your uncle r.i.p..My nephew wonts me to build him a bike,his pop's died ,was riding at time.his(dad side) family hatted us blamed us.
  You definitely have the heart I believe to complete the job you have before you,I've seen and heard that at times the water saved more parts then in ruined due to flooding and setting,going to take some learning and pretty sure the guys will help were they can,Don't listen to me I'm a painter,but can reaD AND ALWAYS LEARNING,opps,I have a "77" S.S.still needing some work but will be fine and not in a hurry been riding all my life and can handle another month maybe l.o.l.
 Where also here for encouragement ,so let us know how your build is going ...Piute N Judose...
                            1977 CB750 F2 Super Sport
<LET THOSE WHO RIDE DECIDE><RIDE TO LIVE-LIVE FOR JESUS> 
Native American from central Cal,  Kickstand UP in S.W.Missouri,
                                       
 
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Re: My free bike and its story

samir_nayanajaad
Thanks for the help guys. Although I am now fairly sure I have the engine to match the frame Im not 100% because of what Tools said about the numbers being within 500.  The frame number is 2020723 and the engine is 2541083.

Another thing I wanted to ask Tools is about the rear wheel and sprocket. My dad seemed to remember having to add a lot of length to the chain because the rear sprocket had a lot more teeth. I didn't count teeth on it but do you know if this sprocket would keep this bike geared close to stock to keep it rideable?  

I like the look of this wheel and would like to make it work.  Along the same line if that sprocket is too big, any ideas on replacement sprockets front or rear that could make it work?

And here is a pic for those who don't have a 81 Suzuki and might be able to answer my question.

Why does it say paper jam when there is no paper jam? I swear to god one of these days, I just kick this piece of shit out the window.
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Re: My free bike and its story

TOOLS1
Administrator
Your engine is in the right range, for it being a 76 F-1
750F1
       
1976
       
CB750F-2000003 -
       
CB750(*)-2515094 -

You would need to count the teeth on both sprockets before I could answer the gearing question. However I would guess that, you would want a smaller sprocket.
I have a front wheel to match your rear, if your interested.
TOOLS
Life is not about the number of breaths, you take, but the moments that take your breath away.
I don't have an anger problem. I have an idiot problem. Hank Hill
Never confuse education for intelligence.
Happiness is a belt fed weapon.
I just can't imagine what could go wrong.
No fire? No explosions? So whats the point of your story?
Those who are too smart to engage in politics are punished by being governed by those who are dumber. ~Plato
It couldn't be done, but the darn fool didn't know it, and did it anyway.
We all got problems. Ksharp
I like vintage bikes because they take me away from the clutter of technology that I work with everyday and back to a simpler time of mechanical elegance and simplicity.. "ninadm"
Darkwing Duck: The worst part of public transportation is the Public.
"That is awesome shit there" Re-Run
"Fear nothing, attack everything" Eric Berry
" Oh, you read that on the internet? Clearly it IS a massive problem. Of course it CAN’t be normal operation."

1976 CB 750-A X 2
1977 CB 750-A X 4
1977 CB 750-K
1976 CB 750 F
1981 CB 750
1966 Kawasaki SG 250
1981 KZ 750 LTD
1973 CB 350
1979 CM 185 Twinstar
1982 Honda XL 80
South of Eden (Kansas City MO)
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Re: My free bike and its story

samir_nayanajaad
Thanks a lot Tools now that I know im looking for 76 F1 parts it will help me nail down the cost Im looking at.  As for the wheel that would be sweet but as I am not exactly sure where I am taking this bike, Ill have to hold off on it.



Why does it say paper jam when there is no paper jam? I swear to god one of these days, I just kick this piece of shit out the window.