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Author Topic: 1974 CB550. Racetech Monoshock. JMR Head. Built Engine. "BLAC"  (Read 188846 times)

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Offline NobleHops

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Re: 1974 Honda CB550. Monoshock. "BLAC"
« Reply #400 on: January 14, 2017, 11:50:35 AM »
If you're referring to this, that is definitely not kosher.

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Nils Menten * Tucson, Arizona, USA

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My build thread: NobleHops makes a 400F pretty for his wife: http://forums.sohc4.net/index.php?topic=131210.0

Offline SOHC4 Cafe Racer Fan

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Re: 1974 Honda CB550. Monoshock. "BLAC"
« Reply #401 on: January 14, 2017, 11:52:28 AM »
Ouch!  :o
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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 754

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Re: 1974 Honda CB550. Monoshock. "BLAC"
« Reply #402 on: January 14, 2017, 11:54:14 AM »
How was it shifting ? Looks like part of the shift fork maybe gone,not sure how that would happen ?
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Kelowna B.C.       Canada

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 bwaller

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Re: 1974 Honda CB550. Monoshock. "BLAC"
« Reply #403 on: January 14, 2017, 01:39:21 PM »
Often those fork ends are rough or at least not finished. That one looks rougher than normal (previous contact?) but may have absolutely no negative effect as long as the sliding surfaces are untouched.
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Offline BLAC

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Re: 1974 Honda CB550. Monoshock. "BLAC"
« Reply #404 on: January 15, 2017, 06:27:33 PM »
I have only ever ridden the bike once, and I don't recall any issues shifting... :-\

I will snap a few more close ups when I am back at my shop.
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If you can't fix it with a hammer, it's an electrical problem... If it's an electrical problem, it's Cal's problem.

*2005 Yamaha R6 (sold)
*2014 Ducati Streetfighter 848 (sold)
*2014 BMW S1000RR (sold)
*2010 Ducati Streetfighter S
*1978 CB550 Restomod Build
*1974 CB550 Monoshock build
http://forums.sohc4.net/index.php/topic,154614.0.html

Offline BLAC

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Re: 1974 Honda CB550. Monoshock. "BLAC"
« Reply #405 on: January 16, 2017, 03:11:31 AM »
Going through old pics and I found a photo of me taken the first time I sat on a motorcycle, and it was a Honda  ;)

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If you can't fix it with a hammer, it's an electrical problem... If it's an electrical problem, it's Cal's problem.

*2005 Yamaha R6 (sold)
*2014 Ducati Streetfighter 848 (sold)
*2014 BMW S1000RR (sold)
*2010 Ducati Streetfighter S
*1978 CB550 Restomod Build
*1974 CB550 Monoshock build
http://forums.sohc4.net/index.php/topic,154614.0.html

Offline SOHC4 Cafe Racer Fan

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Re: 1974 Honda CB550. Monoshock. "BLAC"
« Reply #406 on: January 16, 2017, 09:11:43 AM »
Start 'em off young!  VFR!
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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 754

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Re: 1974 Honda CB550. Monoshock. "BLAC"
« Reply #407 on: January 16, 2017, 02:06:58 PM »
Jeez I thought I was old when that bike came out...
Now I really feel old..sniff...sniff...
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Maker of the WELDLESS 750 Frame Kit
dodogas99@gmail.com
Kelowna B.C.       Canada

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 seanbarney41

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Re: 1974 Honda CB550. Monoshock. "BLAC"
« Reply #408 on: January 16, 2017, 02:15:50 PM »
Quote from: BLAC on January 16, 2017, 03:11:31 AM
Going through old pics and I found a photo of me taken the first time I sat on a motorcycle, and it was a Honda  ;)


dohhh!...that makes me sad and happy at the same time.  It was an awesome bike before it munched a valve and a piston last summer.  I miss it.DSCN0731 by Sean Barney, on Flickr
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If it works good, it looks good...

Offline BLAC

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Re: 1974 Honda CB550. Monoshock. "BLAC"
« Reply #409 on: January 16, 2017, 02:55:08 PM »
wow that's the one! Sorry for your loss  :'(
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If you can't fix it with a hammer, it's an electrical problem... If it's an electrical problem, it's Cal's problem.

*2005 Yamaha R6 (sold)
*2014 Ducati Streetfighter 848 (sold)
*2014 BMW S1000RR (sold)
*2010 Ducati Streetfighter S
*1978 CB550 Restomod Build
*1974 CB550 Monoshock build
http://forums.sohc4.net/index.php/topic,154614.0.html

Offline BLAC

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Re: 1974 Honda CB550. Monoshock. "BLAC"
« Reply #410 on: January 16, 2017, 05:13:43 PM »
Quote from: 754 on January 16, 2017, 02:06:58 PM
Jeez I thought I was old when that bike came out...
Now I really feel old..sniff...sniff...

well you are a "really old timer"   :P
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If you can't fix it with a hammer, it's an electrical problem... If it's an electrical problem, it's Cal's problem.

*2005 Yamaha R6 (sold)
*2014 Ducati Streetfighter 848 (sold)
*2014 BMW S1000RR (sold)
*2010 Ducati Streetfighter S
*1978 CB550 Restomod Build
*1974 CB550 Monoshock build
http://forums.sohc4.net/index.php/topic,154614.0.html

Offline BLAC

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Re: 1974 Honda CB550. Monoshock. "BLAC"
« Reply #411 on: January 17, 2017, 12:54:20 PM »
Back to the bike:

Is this plate substantial enough for me to use (with tabs on the underside) as the anchor point under the front of the seat for my monoshock?

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If you can't fix it with a hammer, it's an electrical problem... If it's an electrical problem, it's Cal's problem.

*2005 Yamaha R6 (sold)
*2014 Ducati Streetfighter 848 (sold)
*2014 BMW S1000RR (sold)
*2010 Ducati Streetfighter S
*1978 CB550 Restomod Build
*1974 CB550 Monoshock build
http://forums.sohc4.net/index.php/topic,154614.0.html

Offline BLAC

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Re: 1974 Honda CB550. Monoshock. "BLAC"
« Reply #412 on: January 17, 2017, 01:34:34 PM »
Thats what I thought, but I have reoccurring nightmares of riding down the 405 when one of the monoshock mounts lets go..

t'would ruin ones day.
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If you can't fix it with a hammer, it's an electrical problem... If it's an electrical problem, it's Cal's problem.

*2005 Yamaha R6 (sold)
*2014 Ducati Streetfighter 848 (sold)
*2014 BMW S1000RR (sold)
*2010 Ducati Streetfighter S
*1978 CB550 Restomod Build
*1974 CB550 Monoshock build
http://forums.sohc4.net/index.php/topic,154614.0.html

Offline 754

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Re: 1974 Honda CB550. Monoshock. "BLAC"
« Reply #413 on: January 17, 2017, 03:27:01 PM »
If it spans the width of the seat rails, i think it could use a doubler..anotr plate or maybe some 1 or 1 1/4  channel across the top.
« Last Edit: January 17, 2017, 06:08:55 PM by 754 »
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Maker of the WELDLESS 750 Frame Kit
dodogas99@gmail.com
Kelowna B.C.       Canada

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 BLAC

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Re: 1974 Honda CB550. Monoshock. "BLAC"
« Reply #414 on: January 17, 2017, 03:57:49 PM »
It is the same shape and size as the tank mounting plate that attaches to the rubber mount, the half moon plate.

I am thinking about boxing it off to add strength as well

Better pics to come...

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If you can't fix it with a hammer, it's an electrical problem... If it's an electrical problem, it's Cal's problem.

*2005 Yamaha R6 (sold)
*2014 Ducati Streetfighter 848 (sold)
*2014 BMW S1000RR (sold)
*2010 Ducati Streetfighter S
*1978 CB550 Restomod Build
*1974 CB550 Monoshock build
http://forums.sohc4.net/index.php/topic,154614.0.html

Offline NobleHops

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Re: 1974 Honda CB550. Monoshock. "BLAC"
« Reply #415 on: January 17, 2017, 04:42:22 PM »
Bryan, a TON of force is fed into the shock mounts, especially at the end of a lever in a monoshock position. Err on the side of beefy. 
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Nils Menten * Tucson, Arizona, USA

I have a motorcycle problem.

My build thread: NobleHops makes a 400F pretty for his wife: http://forums.sohc4.net/index.php?topic=131210.0

Offline 540nova

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Re: 1974 Honda CB550. Monoshock. "BLAC"
« Reply #416 on: January 17, 2017, 05:35:10 PM »
I would add gussets to it.


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Offline Restoration Fan

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Re: 1974 Honda CB550. Monoshock. "BLAC"
« Reply #417 on: January 17, 2017, 05:39:15 PM »
Quote from: 540nova on January 17, 2017, 05:35:10 PM
I would add gussets to it.
 
I would double the thickness of the metal, weld it to the frame and then weld 2 small gussets on each side. 
Considering that monoshock will be sitting beneath your seat, the last thing in the world you want is for the metal to break and the shock to get inserted some place in your rectum...right before you wreck and go down.
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Ron

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Offline 754

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Re: 1974 Honda CB550. Monoshock. "BLAC"
« Reply #418 on: January 17, 2017, 06:10:21 PM »
Fiixed my last post.. The small channel atop what you have may do the trick..
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Maker of the WELDLESS 750 Frame Kit
dodogas99@gmail.com
Kelowna B.C.       Canada

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 bill440cars

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Re: 1974 Honda CB550. Monoshock. "BLAC"
« Reply #419 on: January 17, 2017, 06:19:46 PM »



        Whoa, I kinda got a tad behind on this, and looks like progress is still going pretty well. You do some mighty fine work and put slot of thought into a build and it shows. Gotta love the tips and suggestions, from folks here, as it has been said, lots of Valuable info on this forum, from lots of folks who don't mind offering it.  ;)
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Member # 1969
PRAYERS ALWAYS FOR: Bre, Jeff & Virginia, Bear, Trevor & Brianna ( Close Friend's Daughter)
"Because HE lives, I can Face Tomorrow"                  
 You CAN Teach An Old Dog New Tricks, Just Takes A Little Bit Longer & A Lot More Patience!! 
             
Main Rides: '02 Durango, '71 Swinger & Dad's '93
                  Dakota LE 4x4 '66 CB77 & '72 SL350K2
Watch What You Step Into, It Could  End Up A Mess!

Offline 754

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Re: 1974 Honda CB550. Monoshock. "BLAC"
« Reply #420 on: January 17, 2017, 07:28:38 PM »
I was thinking late is horizontal , which way is it going?
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Maker of the WELDLESS 750 Frame Kit
dodogas99@gmail.com
Kelowna B.C.       Canada

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 BLAC

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Re: 1974 Honda CB550. Monoshock. "BLAC"
« Reply #421 on: January 18, 2017, 12:24:51 AM »
Yep it will be horizontal with the two brackets under it to hold the spring. (this is the cardboard template)

« Last Edit: January 18, 2017, 12:32:34 AM by BLAC »
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If you can't fix it with a hammer, it's an electrical problem... If it's an electrical problem, it's Cal's problem.

*2005 Yamaha R6 (sold)
*2014 Ducati Streetfighter 848 (sold)
*2014 BMW S1000RR (sold)
*2010 Ducati Streetfighter S
*1978 CB550 Restomod Build
*1974 CB550 Monoshock build
http://forums.sohc4.net/index.php/topic,154614.0.html

Offline BLAC

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Re: 1974 Honda CB550. Monoshock. "BLAC"
« Reply #422 on: January 19, 2017, 10:52:18 PM »
Lets crack this thing open!



Rockers look pretty good!


Head action in the shop


Thoughts on this cam chain tensioner?


I found something harder than diamonds.. this old gasket..   >:(


Lets see whats in here..
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If you can't fix it with a hammer, it's an electrical problem... If it's an electrical problem, it's Cal's problem.

*2005 Yamaha R6 (sold)
*2014 Ducati Streetfighter 848 (sold)
*2014 BMW S1000RR (sold)
*2010 Ducati Streetfighter S
*1978 CB550 Restomod Build
*1974 CB550 Monoshock build
http://forums.sohc4.net/index.php/topic,154614.0.html

Offline BLAC

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Re: 1974 Honda CB550. Monoshock. "BLAC"
« Reply #423 on: January 19, 2017, 10:56:55 PM »
Allow me to be the 1,294th person to say it.... Nils is the man and vapor blasting is amazing...



Are you kidding me, this is amazing...


This might be the straw that broke the camels wallet.. I might have to split my case and send it off to get beautified
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If you can't fix it with a hammer, it's an electrical problem... If it's an electrical problem, it's Cal's problem.

*2005 Yamaha R6 (sold)
*2014 Ducati Streetfighter 848 (sold)
*2014 BMW S1000RR (sold)
*2010 Ducati Streetfighter S
*1978 CB550 Restomod Build
*1974 CB550 Monoshock build
http://forums.sohc4.net/index.php/topic,154614.0.html

Offline bill440cars

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Re: 1974 Honda CB550. Monoshock. "BLAC"
« Reply #424 on: January 20, 2017, 05:09:19 AM »
Quote from: BLAC on January 19, 2017, 10:56:55 PM
Allow me to be the 1,294th person to say it.... Nils is the man and vapor blasting is amazing...

Are you kidding me, this is amazing...


This might be the straw that broke the camels wallet.. I might have to split my case and send it off to get beautified

            Wow, That DOES do quite the job, on those parts! I am impressed!  8)
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Member # 1969
PRAYERS ALWAYS FOR: Bre, Jeff & Virginia, Bear, Trevor & Brianna ( Close Friend's Daughter)
"Because HE lives, I can Face Tomorrow"                  
 You CAN Teach An Old Dog New Tricks, Just Takes A Little Bit Longer & A Lot More Patience!! 
             
Main Rides: '02 Durango, '71 Swinger & Dad's '93
                  Dakota LE 4x4 '66 CB77 & '72 SL350K2
Watch What You Step Into, It Could  End Up A Mess!
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