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Author Topic: 77 CB550F getting started  (Read 1362 times)

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Offline GardenGnome

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  • 1977 CB550F
77 CB550F getting started
« on: June 11, 2017, 10:18:10 AM »
This is my first post in this sub. I've been posting mostly tech questions, so I'm excited to share some progress of my project. I went over to a friends house to have him weld the seat hoop in. While it may be small, it's the start of the vision I have for this bike since pulling all the bit out of the frame. Anyway, enjoy some pictures.









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If I've learned anything about building a motorcycle, it's check and re-check your work before you put it all back together. Although you do gain more experience by doing it twice.

Online calj737

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Re: 77 CB550F getting started
« Reply #1 on: June 12, 2017, 04:32:35 AM »
You will have a conflict between your new seat hoop/pan and rear tire  :-[

This "modification" is very popular, and so too is the issue. The factory hoop had that "offset" bridge to allow suspension travel and the tire to move vertically under compression and not touch the inner fender. You'd best stop now and confirm that either suspension changes you're making (longer shocks) or a smaller tire (probably need a 16") or both will accommodate the new hoop.
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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 SOHC4 Cafe Racer Fan

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Re: 77 CB550F getting started
« Reply #2 on: June 12, 2017, 09:04:22 AM »
This is one reason why the angled hoops are a popular option.  Not the good kind of friction.
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"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)

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Online calj737

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Re: 77 CB550F getting started
« Reply #3 on: March 09, 2018, 12:46:34 AM »
Diagram for reference:
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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 DurangoCB

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Re: 77 CB550F getting started
« Reply #4 on: March 09, 2018, 08:42:38 AM »
Grave digger! 
 ;D

That wiring diagram though... I like the way it looks visually.  Is that a one-off someone created or is there a website with a variety of wiring diagrams that are all similar visually? 
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1971 CB500 Four- current project http://forums.sohc4.net/index.php/topic,170622.0.html
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