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Author Topic: 1975 CB550K1 - Stock-ish Restomod - More Mods  (Read 153130 times)

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Offline SOHC4 Cafe Racer Fan

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Re: 1975 CB550K1 - Stock-ish Restomod - More Mods
« Reply #625 on: May 20, 2019, 07:16:20 PM »
Also swapped out all of my turn indicators for LED flashers.
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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 SOHC4 Cafe Racer Fan

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Re: 1975 CB550K1 - Stock-ish Restomod - More Mods
« Reply #626 on: May 25, 2019, 01:09:34 PM »
Seat stripped, re-foamed with a thinner profile (and new firmer foam) and re-covered.

IMG_5624 by Donald Leonhardt, on Flickr

New LED signals and brake light.

IMG_5627 by Donald Leonhardt, on Flickr

IMG_5626 by Donald Leonhardt, on Flickr

IMG_5628 by Donald Leonhardt, on Flickr
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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 SOHC4 Cafe Racer Fan

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Re: 1975 CB550K1 - Stock-ish Restomod - More Mods
« Reply #627 on: May 25, 2019, 01:14:04 PM »
My buddy Dave does vapor blasting (like Nils) here in Long Beach and San Diego.  My carburetors were originally painted black but the paint started flaking after a few ultrasonic baths, so they've been disassembled and vapor blasted.  Next, Dave is cerakoting them black so I won't have to worry about the finish again.
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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 SOHC4 Cafe Racer Fan

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Re: 1975 CB550K1 - Stock-ish Restomod - More Mods
« Reply #628 on: June 03, 2019, 04:16:49 PM »
Mounted 10 mm rear and 8 mm front stand spools this last weekend.  This is a great mod, especially if you've deleted the center stand.

For the rear, you will need some patience with the tap to run threads through the steel.

For the front, you just hog the rear bottom hole on the fork lower and tap for 8 mm. 

IMG_5812 by Donald Leonhardt, on Flickr

IMG_5810 by Donald Leonhardt, on Flickr

IMG_5809 by Donald Leonhardt, on Flickr

IMG_5808 by Donald Leonhardt, on Flickr
« Last Edit: June 03, 2019, 04:19:39 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 SF

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Re: 1975 CB550K1 - Stock-ish Restomod - More Mods
« Reply #629 on: June 03, 2019, 05:40:58 PM »
Very nice mods.....well done


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92 wr250 sold
98 zx6r sold
04 zx10r
73 cb350 twin
75 cb550f
75 cb550f
72 r5c
rgid springer bobber project

Offline SOHC4 Cafe Racer Fan

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Re: 1975 CB550K1 - Stock-ish Restomod - More Mods
« Reply #630 on: June 03, 2019, 06:16:26 PM »
Quote from: SF on June 03, 2019, 05:40:58 PM
Very nice mods.....well done


Sent from my iPhone using Tapatalk


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 LastChancer88

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Re: 1975 CB550K1 - Stock-ish Restomod - More Mods
« Reply #631 on: June 04, 2019, 11:31:37 AM »
Quote from: SOHC4 Cafe Racer Fan on May 25, 2019, 01:09:34 PM
Seat stripped, re-foamed with a thinner profile (and new firmer foam) and re-covered.

What foam did you use?  This is something I am very interested in doing as well.
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1973 Honda CB500 Four
1973 Suzuki TC125

Offline SOHC4 Cafe Racer Fan

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Re: 1975 CB550K1 - Stock-ish Restomod - More Mods
« Reply #632 on: June 04, 2019, 11:43:54 AM »
Quote from: LastChancer88 on June 04, 2019, 11:31:37 AM
What foam did you use?  This is something I am very interested in doing as well.

I did not do the re-upholstery work. 
It was done by:
Revs Customs Upholstery in Garden Grove, CA (automotive and motorcycle upholstery)
714-548-2792
@revs_customs on Instagram

I'm not sure what specific type of foam he uses, but I'm sure you could ask.
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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 LastChancer88

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Re: 1975 CB550K1 - Stock-ish Restomod - More Mods
« Reply #633 on: June 04, 2019, 12:44:16 PM »
Quote from: SOHC4 Cafe Racer Fan on June 04, 2019, 11:43:54 AM
Quote from: LastChancer88 on June 04, 2019, 11:31:37 AM
What foam did you use?  This is something I am very interested in doing as well.

I did not do the re-upholstery work. 
It was done by:
Revs Customs Upholstery in Garden Grove, CA (automotive and motorcycle upholstery)
714-548-2792
@revs_customs on Instagram

I'm not sure what specific type of foam he uses, but I'm sure you could ask.

Oh for sure.  Thanks!  My seat is just looking a little saggy
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1973 Honda CB500 Four
1973 Suzuki TC125

Offline SOHC4 Cafe Racer Fan

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Re: 1975 CB550K1 - Stock-ish Restomod - More Mods
« Reply #634 on: June 04, 2019, 01:38:42 PM »
Quote from: LastChancer88 on June 04, 2019, 12:44:16 PM
Quote from: SOHC4 Cafe Racer Fan on June 04, 2019, 11:43:54 AM
Quote from: LastChancer88 on June 04, 2019, 11:31:37 AM
What foam did you use?  This is something I am very interested in doing as well.

I did not do the re-upholstery work. 
It was done by:
Revs Customs Upholstery in Garden Grove, CA (automotive and motorcycle upholstery)
714-548-2792
@revs_customs on Instagram

I'm not sure what specific type of foam he uses, but I'm sure you could ask.

Oh for sure.  Thanks!  My seat is just looking a little saggy

That’s why I didn’t want to just trim down the 40-year old foam and opted for new foam.

Check out river’ thread. He just refoamed his seat. http://forums.sohc4.net/index.php/topic,176846.0.html
« Last Edit: June 04, 2019, 01:41:18 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 Stev-o

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Re: 1975 CB550K1 - Stock-ish Restomod - More Mods
« Reply #635 on: June 04, 2019, 02:53:47 PM »
Nice upgrades Don!  It's easy to get addicted to vapor blasting, even the kids are "Vaping" now!
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'74 "Big Bang" Honda 750K [836].....'76 Honda 550F.....K3 Park Racer!......and a Bomber!............plus plus plus.........

Offline SOHC4 Cafe Racer Fan

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Re: 1975 CB550K1 - Stock-ish Restomod - More Mods
« Reply #636 on: June 04, 2019, 03:27:37 PM »
Quote from: Stev-o on June 04, 2019, 02:53:47 PM
Nice upgrades Don!  It's easy to get addicted to vapor blasting, even the kids are "Vaping" now!

 ;D
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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 SOHC4 Cafe Racer Fan

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Re: 1975 CB550K1 - Stock-ish Restomod - More Mods
« Reply #637 on: June 15, 2019, 05:51:02 PM »
Carburetors were vapor blasted and then cerakoted satin black. Cerakote (not ceramic powder coating) is as durable than powder coating and thinner.

If you like the vapor blasting, hit up Nils at Restocycle (https://www.restocycle.com/) or Dave Hargreaves in Signal Hill, CA (619) 980-0089.  Dave also does cerakote.
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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 river

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Re: 1975 CB550K1 - Stock-ish Restomod - More Mods
« Reply #638 on: June 15, 2019, 06:38:21 PM »
Don, the blasted engine covers turned out really nice. Seat profile looks super. Are you happy with it now? 
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Squirrel 1.0 http://forums.sohc4.net/index.php/topic,127186.2050.
ml

Squirrel 2.0
http://forums.sohc4.net/index.php/topic,176846.msg2055831.html#msg2055831

Squirrel 3.0
http://forums.sohc4.net/index.php/topic,185362.msg2146449.html#msg2146449


"You wouldn't think that out here...a man could simply run clear...out of country but oh my...oh my...nothing but the light." -Ben Nichols

Offline SOHC4 Cafe Racer Fan

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Re: 1975 CB550K1 - Stock-ish Restomod - More Mods
« Reply #639 on: June 15, 2019, 06:57:01 PM »
Quote from: river on June 15, 2019, 06:38:21 PM
Don, the blasted engine covers turned out really nice. Seat profile looks super. Are you happy with it now?
Yes finally!
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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 SOHC4 Cafe Racer Fan

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Re: 1975 CB550K1 - Stock-ish Restomod - More Mods
« Reply #640 on: April 03, 2021, 11:17:17 PM »
Back at it with the 550K1!

After a setback a year or so ago trying to develop a hydraulic clutch actuator and the slave cylinder not providing sufficient throw, I decided to go with a proven solution -- Godffery's Garage's Oberon-Hydraulic clutch conversion cover.

Jeff aka Godffery starts with a CB500 clutch cover (yes, a CB500 cover for a CB550 clutch), mills a hole in the center and attaches an Oberon slave cylinder to a plate (that is tig welded into the inside of the cover) and has the cylinder actuate the clutch pushrod.  And (for added functionality) mills a second hole into the lower right potion of the cover for an oil sight glass.  Here are some progress photos of the cover coming together.  To say I'm excited about it is an understatement.

Milled cover, Oberon slave cylinder and mounting plate
CB550 HCK V.3 3093 by Donald Leonhardt, on Flickr

Cover milled for sight glass (check out that sweet machining)
DSCN3893 by Donald Leonhardt, on Flickr

Sight glass mocked up and ready for tig welding
DSCN3895 by Donald Leonhardt, on Flickr

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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 PeWe

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Re: 1975 CB550K1 - Stock-ish Restomod - More Mods
« Reply #641 on: April 04, 2021, 01:40:03 AM »
This is for your beatifully modified CB550 with really good brakes?
Yes, when brake hand has a fantastic life while riding, why not the clutch hand? ;D ;D
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CB750 K6-76  970cc (Earlier 1005cc JMR Billet block on the shelf waiting for a comeback)
CB750 K2-75 Parts assembled to a stock K2

Updates of the CB750 K6 -1976
http://forums.sohc4.net/index.php/topic,180468.msg2092136.html#msg2092136
The billet block build thread
http://forums.sohc4.net/index.php/topic,49438.msg1863571.html#msg1863571
CB750 K2 -1975  build thread
http://forums.sohc4.net/index.php/topic,168243.msg1948381.html#msg1948381
K2 engine build thread. For a complete CB750 -75
http://forums.sohc4.net/index.php/topic,180088.msg2088008.html#msg2088008
Carb jetting, a long story Mikuni TMR32
http://forums.sohc4.net/index.php/topic,179479.msg2104967.html#msg2104967

Offline SOHC4 Cafe Racer Fan

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Re: 1975 CB550K1 - Stock-ish Restomod - More Mods
« Reply #642 on: April 04, 2021, 01:45:05 AM »
Quote from: PeWe on April 04, 2021, 01:40:03 AM
This is for your beatifully modified CB550 with really good brakes?
Yes, when brake hand has a fantastic life while riding, why not the clutch hand? ;D ;D
Exactly.
This also provides a smooth and lighter clutch lever action.
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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 seanbarney41

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Re: 1975 CB550K1 - Stock-ish Restomod - More Mods
« Reply #643 on: April 04, 2021, 06:40:44 AM »
amazing how you keep finding ways to improve that bike!  Could it possibly be the best street 550 in the world today?
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If it works good, it looks good...

Offline PeWe

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Re: 1975 CB550K1 - Stock-ish Restomod - More Mods
« Reply #644 on: April 04, 2021, 07:38:09 AM »
I had this smoother clutch design in my mind today during a ride with hard clutch, Barnett CB500/550 springs in my blue CB750.
Left hand excercises.
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CB750 K6-76  970cc (Earlier 1005cc JMR Billet block on the shelf waiting for a comeback)
CB750 K2-75 Parts assembled to a stock K2

Updates of the CB750 K6 -1976
http://forums.sohc4.net/index.php/topic,180468.msg2092136.html#msg2092136
The billet block build thread
http://forums.sohc4.net/index.php/topic,49438.msg1863571.html#msg1863571
CB750 K2 -1975  build thread
http://forums.sohc4.net/index.php/topic,168243.msg1948381.html#msg1948381
K2 engine build thread. For a complete CB750 -75
http://forums.sohc4.net/index.php/topic,180088.msg2088008.html#msg2088008
Carb jetting, a long story Mikuni TMR32
http://forums.sohc4.net/index.php/topic,179479.msg2104967.html#msg2104967

Offline Blackfin5

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Re: 1975 CB550K1 - Stock-ish Restomod - More Mods
« Reply #645 on: April 04, 2021, 03:55:45 PM »
Very cool modification, Don.  I think I have a spare blue anodized clutch reservoir by Rizoma if you want it.  I may even have a bar mount, but if I do its 22mm.
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Offline Blackfin5

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Re: 1975 CB550K1 - Stock-ish Restomod - More Mods
« Reply #646 on: April 04, 2021, 04:01:18 PM »
Yup..same as this
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Offline SOHC4 Cafe Racer Fan

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Re: 1975 CB550K1 - Stock-ish Restomod - More Mods
« Reply #647 on: April 04, 2021, 11:03:19 PM »
Thanks, Kevin. My buddy Philippe already gave me a Beringer clutch MC to use although I might need to adjust the size to match the Oberon slave cylinder.

PeWe: that was the exact reason. With Barnett heavy duty clutch springs, it makes the clutch lever action much heavier.
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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: 1975 CB550K1 - Stock-ish Restomod - More Mods
« Reply #648 on: April 04, 2021, 11:16:50 PM »
subscribed  8)
Jeff does good work.
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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 PeWe

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  • Posts: 15,759
  • Bike almost back to the 70's 2015
Re: 1975 CB550K1 - Stock-ish Restomod - More Mods
« Reply #649 on: April 05, 2021, 12:54:21 AM »
I'll look around how to make the existing clutch hydralic.
I do not want clutch slip, so the hard springs are probably needed. Barnett CB750 springs are softer.
On some longer rides I do not use clutch when shifting up, work fine without.
Logged
CB750 K6-76  970cc (Earlier 1005cc JMR Billet block on the shelf waiting for a comeback)
CB750 K2-75 Parts assembled to a stock K2

Updates of the CB750 K6 -1976
http://forums.sohc4.net/index.php/topic,180468.msg2092136.html#msg2092136
The billet block build thread
http://forums.sohc4.net/index.php/topic,49438.msg1863571.html#msg1863571
CB750 K2 -1975  build thread
http://forums.sohc4.net/index.php/topic,168243.msg1948381.html#msg1948381
K2 engine build thread. For a complete CB750 -75
http://forums.sohc4.net/index.php/topic,180088.msg2088008.html#msg2088008
Carb jetting, a long story Mikuni TMR32
http://forums.sohc4.net/index.php/topic,179479.msg2104967.html#msg2104967
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