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Author Topic: The Hot Mess - 1975 CB550F1 Frame/1981 CB650 Engine  (Read 125762 times)

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Offline SOHC4 Cafe Racer Fan

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Re: The Hot Mess - 1975 CB550F1 Frame/1981 CB650 Engine
« Reply #700 on: July 09, 2020, 11:37:02 PM »
Sorry guys. I’ve been snoozing on this one. Been busy having an affair with my MV Augusta Brutale 800RR Dragster.

Also been piecing together a learner track bike for my buddy’s son.

And lusting after a Ducati 748 track bike.

I will get back to the Hot Mess. I promise.
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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 Blackfin5

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Re: The Hot Mess - 1975 CB550F1 Frame/1981 CB650 Engine
« Reply #701 on: July 10, 2020, 02:03:32 PM »
How can you not have a love affair with a sexy Italian, Don.  I hope she isn't the  jealous type.  Very nice...
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Offline grcamna2

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Re: The Hot Mess - 1975 CB550F1 Frame/1981 CB650 Engine
« Reply #702 on: July 10, 2020, 02:57:26 PM »
Did you take the 748 out ? Does she have sweet moves ?!!  :)
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75' CB400F/'bunch o' parts' & 81' CB125S modded to a 'CB200S'
  I love the small ones too !
Do your BEST...nobody can take that away from you.

Offline SOHC4 Cafe Racer Fan

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Re: The Hot Mess - 1975 CB550F1 Frame/1981 CB650 Engine
« Reply #703 on: July 10, 2020, 03:22:59 PM »
Quote from: grcamna2 on July 10, 2020, 02:57:26 PM
Did you take the 748 out ? Does she have sweet moves ?!!  :)

The 748 needs some TLC.  It presently has a strange glitch under hard load between 5K and 6K RPMs where the power cuts out and then snaps back on.  I was giving it a test ride and it did this powering out of a turn, causing the rear to break free and start coming around.  This needs to be addressed likely by tuning or it could cause a brutal high-side.  The bike pulls surprisingly well for a 748cc bike though and its extremely well-planted.  It does not have a slipper clutch, TC or ABS -- very analog and grunty.  I was hoping to take it out at Big Willow (Willow Springs Raceway tomorrow) but not with this current issue. 
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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 grcamna2

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Re: The Hot Mess - 1975 CB550F1 Frame/1981 CB650 Engine
« Reply #704 on: September 21, 2021, 11:46:29 AM »
Don,do you still own the 'Hot Mess' ?
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75' CB400F/'bunch o' parts' & 81' CB125S modded to a 'CB200S'
  I love the small ones too !
Do your BEST...nobody can take that away from you.

Offline SOHC4 Cafe Racer Fan

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Re: The Hot Mess - 1975 CB550F1 Frame/1981 CB650 Engine
« Reply #705 on: September 21, 2021, 12:16:21 PM »
Quote from: grcamna2 on September 21, 2021, 11:46:29 AM
Don,do you still own the 'Hot Mess' ?
Yes, I do. She's been on the back burner for a long time. I decided to complicate things by converting the chassis to a mono-shock set up.
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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: The Hot Mess - 1975 CB550F1 Frame/1981 CB650 Engine
« Reply #706 on: September 21, 2021, 04:05:17 PM »
Quote from: SOHC4 Cafe Racer Fan on September 21, 2021, 12:16:21 PM
Quote from: grcamna2 on September 21, 2021, 11:46:29 AM
Don,do you still own the 'Hot Mess' ?
Yes, I do. She's been on the back burner for a long time. I decided to complicate things by converting the chassis to a mono-shock set up.
Got Pix...?
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Offline SOHC4 Cafe Racer Fan

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Re: The Hot Mess - 1975 CB550F1 Frame/1981 CB650 Engine
« Reply #707 on: September 21, 2021, 06:40:03 PM »
Quote from: Godffery on September 21, 2021, 04:05:17 PM
Quote from: SOHC4 Cafe Racer Fan on September 21, 2021, 12:16:21 PM
Quote from: grcamna2 on September 21, 2021, 11:46:29 AM
Don,do you still own the 'Hot Mess' ?
Yes, I do. She's been on the back burner for a long time. I decided to complicate things by converting the chassis to a mono-shock set up.
Got Pix...?

Yes, in a way.

Here's the chassis in its present state: de-tabbed, with a CMR boxed chromoly swingarm.
image_zpsbghlukp2 by Donald Leonhardt, on Flickr
image_zpsc1lyzdlr by Donald Leonhardt, on Flickr

The bike will have a 2013 GSX-R600 Front End with a Cognitomoto triple:
image_zpsjpiysiex by Donald Leonhardt, on Flickr

The mono-shock and new frame geometry will be adapted from my friend Bryan aka Blacbikes' 550 mono-shock build - with the suspension jointly developed with Matt Wiley at Racetech
Untitled by Donald Leonhardt, on Flickr
Untitled by Donald Leonhardt, on Flickr
Untitled by Donald Leonhardt, on Flickr
Untitled by Donald Leonhardt, on Flickr
Untitled by Donald Leonhardt, on Flickr
« Last Edit: September 21, 2021, 08:01:49 PM by SOHC4 Cafe Racer Fan »
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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 grcamna2

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Re: The Hot Mess - 1975 CB550F1 Frame/1981 CB650 Engine
« Reply #708 on: September 21, 2021, 07:35:27 PM »
That's going to turn-out nice Don,I look forward to the build.  8)
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75' CB400F/'bunch o' parts' & 81' CB125S modded to a 'CB200S'
  I love the small ones too !
Do your BEST...nobody can take that away from you.

Offline SOHC4 Cafe Racer Fan

  • Speak up, Whipper-Snapper! I'm a
  • Really Old Timer ...
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Re: The Hot Mess - 1975 CB550F1 Frame/1981 CB650 Engine
« Reply #709 on: September 21, 2021, 08:16:19 PM »
Quote from: grcamna2 on September 21, 2021, 07:35:27 PM
That's going to turn-out nice Don,I look forward to the build.  8)
Thanks!
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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: The Hot Mess - 1975 CB550F1 Frame/1981 CB650 Engine
« Reply #710 on: September 22, 2021, 11:39:16 AM »
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Offline RAFster122s

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Re: The Hot Mess - 1975 CB550F1 Frame/1981 CB650 Engine
« Reply #711 on: September 22, 2021, 05:36:29 PM »
The Hot Mess would be welcome to live in my garage on loan anytime...
Hahaha
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David- back in the desert SW!

Offline DaveBarbier

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Re: The Hot Mess - 1975 CB550F1 Frame/1981 CB650 Engine
« Reply #712 on: September 28, 2021, 11:47:58 PM »
Don, looking great! Finally back on the hot mess, I’m excited!
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