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Author Topic: 1975 CB750K5, the one I've been waiting for.  (Read 8841 times)

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Offline calj737

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Re: 1975 CB750K5, the one I've been waiting for.
« Reply #50 on: December 22, 2015, 07:27:48 PM »
Quote from: Camrector on December 22, 2015, 04:48:38 PM
Oh and Cal needs touring pants with depends!!! ;D
Not yet. But I will before I ever give up riding-
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'74 550 Build http://forums.sohc4.net/index.php?topic=126401.0
'73 500 Build http://forums.sohc4.net/index.php?topic=132935.0

"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 mashfu

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Re: 1975 CB750K5, the one I've been waiting for.
« Reply #51 on: December 26, 2015, 10:17:40 PM »
Nice build, going through just about the same stage as you. Sticking around for the fun!
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Offline iismatthew

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Re: 1975 CB750K5, the one I've been waiting for.
« Reply #52 on: December 28, 2015, 02:26:47 PM »
Small update: I got my CM400t back, my first bike! My buddy who had it was moving and couldn't keep both his cb125 and the 400 and since the cm400 needed some engine work he passed it back to me! So now I'm going to be trying to get that back on the road rather quickly. Looks like I need to resurface the gasket surface and replace the head gaskets.


« Last Edit: December 28, 2015, 06:13:20 PM by iismatthew »
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Offline Buckskin Bandit

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Re: 1975 CB750K5, the one I've been waiting for.
« Reply #53 on: December 30, 2015, 12:09:28 PM »
Hey, that's cool!  8) There's always something special about the first one..
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Keep the shiny side up and the greasy side down!

1973 Honda 500 four "Chopper" - In pieces :P
1977 CB750 K1 "The Fonz" project
2003 Suzuki GZ 250 "Little Horse" -Sold
1981 Yamaha Maxim 550 "Big Red" -Sold
2007 Shadow Spirit 750 "Blaze"


My resto threads: http://forums.sohc4.net/index.php/topic,152344.0.html
http://forums.sohc4.net/index.php/topic,166240.0.html

Offline iismatthew

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Re: 1975 CB750K5, the one I've been waiting for.
« Reply #54 on: January 07, 2016, 02:15:18 PM »
So the friend who was working on the frame for me? He brought gifts today.


Could not be happier with the out come. There was a bit of a worry about the frame being bent, I went through everything with a level and it's all strait, just looks wonky... May become a bigger concern once we see how it tracks.

I also got a few surprised form him as well.

A 550 rear swing arm so I can have a tubular frame all the way through, also allowing for a wider tire/wheel.

And theses beauties.


Coming along slowly but surely. I've been working on the cm400t I posted about previously and should have that wrapped up shortly.. I also will be starting a new job since I lost mine back in December it'll help to get some money flowing through to fund the project.
« Last Edit: January 07, 2016, 02:20:12 PM by iismatthew »
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Offline Godffery

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Re: 1975 CB750K5, the one I've been waiting for.
« Reply #55 on: February 08, 2016, 07:50:28 AM »
 Are you thinking of using that 550 swing arm for the 750?
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Offline iismatthew

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Re: 1975 CB750K5, the one I've been waiting for.
« Reply #56 on: February 08, 2016, 03:36:51 PM »
Quote from: Godffery on February 08, 2016, 07:50:28 AM
Are you thinking of using that 550 swing arm for the 750?

Thats the plan, why?
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Offline SOHC4 Cafe Racer Fan

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Re: 1975 CB750K5, the one I've been waiting for.
« Reply #57 on: February 08, 2016, 04:52:42 PM »
That's a good mod. The 550 swingarm is slightly longer than the 750 arm and accommodates a wider wheel.
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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)

Sold/Emeritus
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 Godffery

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Re: 1975 CB750K5, the one I've been waiting for.
« Reply #58 on: February 09, 2016, 10:36:14 PM »
 It's not as strong and the 750 is a good bit heaver then the 550.  I would recommend welding in an under tube loop to stiffen it up.

 This one is a tad aggressive but it illustrates the idea:
http://i969.photobucket.com/albums/ae173/tintop_550build/CB%20Cafe%20Build/IMGP0313-1.jpg
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Offline Godffery

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Re: 1975 CB750K5, the one I've been waiting for.
« Reply #59 on: February 09, 2016, 10:44:19 PM »
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Offline SOHC4 Cafe Racer Fan

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Re: 1975 CB750K5, the one I've been waiting for.
« Reply #60 on: February 09, 2016, 10:59:38 PM »
Jeff,

Both great examples of braced swingarms.
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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)

Sold/Emeritus
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 iismatthew

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Re: 1975 CB750K5, the one I've been waiting for.
« Reply #61 on: March 21, 2016, 05:56:48 AM »
I've had some pretty major ups and downs and things are finally back in full swing. I'll have some updates in the next month or so.
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Offline Godffery

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Re: 1975 CB750K5, the one I've been waiting for.
« Reply #62 on: March 21, 2016, 10:36:44 AM »
Quote from: iismatthew on March 21, 2016, 05:56:48 AM
I've had some pretty major ups and downs and things are finally back in full swing. I'll have some updates in the next month or so.

   " ups and downs, in full swing "
Pun's intended...?  =)
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Offline iismatthew

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Re: 1975 CB750K5, the one I've been waiting for.
« Reply #63 on: May 09, 2016, 05:44:13 PM »
..It sure has been a while...

I finished up a little scrambler out of that cm400, ended up blowing the engine (primary chain) and found a cm450 with 1200 original miles on it, swap meet for a few parts and a plethora of new components I'm riding and ready to get back to work on the CB750.

Between a few local celebrities on here, got my new head in! I found that the original head that came with my bike had a very armature attempt at porting and they had dremeled through the intake so that needed to be replaced. Spoke with a friend who was able to track this down, I'll let everyone guess who was involved with this one, I am certainly impressed!
« Last Edit: May 09, 2016, 05:49:49 PM by iismatthew »
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