Author Topic: 1973 CB750 Custom Build on Hack A Week  (Read 102903 times)

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Offline Prez1967

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Re: 1973 CB750 Cafe Build on Hack A Week
« Reply #25 on: July 21, 2014, 12:12:41 PM »
Been waiting on the next video! Looking forward to watching it asap.

Offline Ravie

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Re: 1973 CB750 Cafe Build on Hack A Week
« Reply #26 on: July 21, 2014, 06:11:51 PM »
Watched all the vids this evening. Good stuff.
1975 CB750K5 Rebuild in progress.
http://forums.sohc4.net/index.php?topic=139072.0

Offline Jerilee

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Re: 1973 CB750 Cafe Build on Hack A Week
« Reply #27 on: July 22, 2014, 05:57:35 PM »
Been enjoying all of your Hack A Weeks for a while, especially the VF build. Looking forward to the CB and thanks for sharing all your hard work.
Jeri~
My F2 build http://forums.sohc4.net/index.php?topic=126314.0

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Offline Dino

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Re: 1973 CB750 Cafe Build on Hack A Week
« Reply #28 on: August 10, 2014, 05:23:32 PM »
Front fork assembly got done this weekend. The springs need to be replaced but I installed them for now. Anyone have a suggestion for after market springs?

« Last Edit: February 14, 2015, 04:31:28 AM by Dino »
If it ain't broke, don't fix it!

Offline Jerilee

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Re: 1973 CB750 Cafe Build on Hack A Week
« Reply #29 on: August 20, 2014, 06:16:39 PM »
Dino, did you get any good leads on aftermarket springs yet? Are you thinking progressives or like-stock?
Jeri~
My F2 build http://forums.sohc4.net/index.php?topic=126314.0

77/78 cool 2 member

Offline Dino

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Re: 1973 CB750 Cafe Build on Hack A Week
« Reply #30 on: August 20, 2014, 06:24:53 PM »
Dino, did you get any good leads on aftermarket springs yet? Are you thinking progressives or like-stock?

Yes. Race Tech. $124 a pair
http://racetech.com/ProductSearch/2/Honda/CB750K/1973-78
If it ain't broke, don't fix it!

Offline Dino

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Re: 1973 CB750 Custom Build on Hack A Week
« Reply #31 on: September 18, 2014, 04:13:45 AM »
Got the wheels trued up. I've changed direction on this build. I'm going for a scrambler now.

« Last Edit: February 14, 2015, 04:31:03 AM by Dino »
If it ain't broke, don't fix it!

Offline wowbagger

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Re: 1973 CB750 Custom Build on Hack A Week
« Reply #32 on: September 18, 2014, 07:27:59 AM »
Another excellent video. I will say that a dial gauge and spoke torque wrench make wheel truing much easier but those can be hefty investments for something you only do twice.

Offline Dino

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Re: 1973 CB750 Custom Build on Hack A Week
« Reply #33 on: September 18, 2014, 02:50:09 PM »
Dial gauge I have... in my "at work" tool chest. It's a clamp on style with the multi-joint snake extension that can be locked in any position. Quite handy.
No spoke torque wrench but sound is also a measure of tension. I go by sound. Of course, some will be under more tension until the wheel settles in. It will end up being tuned up a few times more after the bike is a runner. Maybe by then I'll have invested in a spoke torque wrench.

I'll have to bring my dial gauge home and try it. I like the idea.  ;) Thanks.
If it ain't broke, don't fix it!

Offline Ravie

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Re: 1973 CB750 Custom Build on Hack A Week
« Reply #34 on: September 19, 2014, 09:03:56 AM »
Check your PM's Dean. :-P
1975 CB750K5 Rebuild in progress.
http://forums.sohc4.net/index.php?topic=139072.0

Offline SOHC4 Cafe Racer Fan

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Re: 1973 CB750 Custom Build on Hack A Week
« Reply #35 on: September 19, 2014, 03:29:10 PM »
I'm bummed my work computer blocks youtube.  I'm intrigued by the new direction of a scrambler, since it was not a CL to begin with.  Trackers are increasingly popular -- the new café if you will.  Are you going to track down a shotgun exhaust or have one fabricated for the build??
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 Dino

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Re: 1973 CB750 Custom Build on Hack A Week
« Reply #36 on: September 20, 2014, 05:46:40 AM »
I just might fab up my own exhaust.
If it ain't broke, don't fix it!

Offline SOHC4 Cafe Racer Fan

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Re: 1973 CB750 Custom Build on Hack A Week
« Reply #37 on: September 20, 2014, 08:15:18 AM »
Great video, Dino. Note: your front wheel is mounted on the opposite side. The speedo drive should be on the right side.

How about a tracker instead of a scrambler?
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 Ravie

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Re: 1973 CB750 Custom Build on Hack A Week
« Reply #38 on: September 20, 2014, 09:37:33 AM »
Here I am telling you to check your PM's when I realize...whatever I wrote you never apparently got sent. Go figure.

I like the brat/tracker thing but those flat seats weird me out. Just seems like a good way to slide off. I love the exhaust designs though.



1975 CB750K5 Rebuild in progress.
http://forums.sohc4.net/index.php?topic=139072.0

Offline Dino

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Re: 1973 CB750 Custom Build on Hack A Week
« Reply #39 on: September 28, 2014, 08:09:14 PM »
I got the new aluminum rods this week and I'm working on installing them.

« Last Edit: February 14, 2015, 04:30:36 AM by Dino »
If it ain't broke, don't fix it!

Offline SOHC4 Cafe Racer Fan

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Re: 1973 CB750 Custom Build on Hack A Week
« Reply #40 on: September 28, 2014, 09:53:16 PM »
I got the new aluminum rods this week and I'm working on installing them.

http://youtu.be/yONjImhq2iI

Here's another source for those connecting rods.  I don't know how they stack up to Cycle X's super rods.
http://www.cb750cafe.com/products-page/motor-parts-and-accessories/aluminum-forged-con-rods/
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 Dino

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Re: 1973 CB750 Custom Build on Hack A Week
« Reply #41 on: October 19, 2014, 07:46:15 AM »
I notched the cylinder skirts this week. The rods have plenty of clearance now thanks to a Bridgeport milling machine and a Dremel.

The final notch ended up at 8 mm depth and 28 mm width.

Here's this week's video where you can see the whole process.

« Last Edit: February 14, 2015, 04:29:33 AM by Dino »
If it ain't broke, don't fix it!

Offline 754

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Re: 1973 CB750 Custom Build on Hack A Week
« Reply #42 on: October 19, 2014, 08:32:02 AM »
I would clamp the cylinder to table with vise removed.. Far more rigid..the sleeves are fairly easy to break. And use your spacers that were in the vise to hold the cylinders on. When checking the fit.
Maker of the WELDLESS 750 Frame Kit
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My next bike will be a ..ANFOB.....

It's All part of the ADVENTURE...

73 836cc.. Green, had it for 3 decades!!
Lost quite a few CB 750's along the way

Offline PPG9944

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Re: 1973 CB750 Custom Build on Hack A Week
« Reply #43 on: October 19, 2014, 02:46:39 PM »
This video series is definitely helping me out a lot.  Answering many questions I've had and will still have.  Thank you

Offline Restoration Fan

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Re: 1973 CB750 Custom Build on Hack A Week
« Reply #44 on: October 21, 2014, 07:01:29 AM »
Glad to find the thread on here.  Been watching your videos for a few months.  Really enjoyed your series on the building of your Sabre.  Subscribed.
Ron

Stella - Logan's Senior Project    78 750K http://forums.sohc4.net/index.php?topic=141761.0

Logan's Reward - CB500 and CB550 Cafes    http://forums.sohc4.net/index.php/topic,147787.0.html

Offline Tews19

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Re: 1973 CB750 Custom Build on Hack A Week
« Reply #45 on: October 21, 2014, 09:26:40 AM »
WOW! Interesting build series on youtube. I am a subscriber!
1969 Honda CB750... Basket case
1970 Honda CB750 survivor.

Offline SOHC4 Cafe Racer Fan

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Re: 1973 CB750 Custom Build on Hack A Week
« Reply #46 on: October 21, 2014, 09:52:12 AM »
WOW! Interesting build series on youtube. I am a subscriber!

I like Dino's videos.  I spent a big old chunk of time watching a bunch of his Sabre build.
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 Tews19

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Re: 1973 CB750 Custom Build on Hack A Week
« Reply #47 on: October 21, 2014, 11:51:38 AM »
Dino, you should hit up member Godffrey here. His rotors are second to none for quality work. If you run dual disk his rotors will equal one in total weight. Honestly that would really make the bike pop.
« Last Edit: October 21, 2014, 12:05:10 PM by Tews19 »
1969 Honda CB750... Basket case
1970 Honda CB750 survivor.

Offline SOHC4 Cafe Racer Fan

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Re: 1973 CB750 Custom Build on Hack A Week
« Reply #48 on: October 21, 2014, 12:00:22 PM »
Dino, you should hit up member Godffrey here. His rotors are second to none for quality work. If you run dual disk his rotors will equal on in total weight. Honestly that would really make the bike pop.

I have Goddfrey's twin disc set-up on my 550K.  It is a Big improvement over stock.  That said, the GL1000 front (including brakes) on my 750 is much, much better.
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 Dino

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Re: 1973 CB750 Custom Build on Hack A Week
« Reply #49 on: October 26, 2014, 04:03:22 PM »
I spent the better part of the day inspecting the chains and editing this week's video for Hack A Week. The primary drive chain is OK, and the camshaft chain seems to be brand new!

« Last Edit: February 14, 2015, 04:29:13 AM by Dino »
If it ain't broke, don't fix it!