1974 CB550 KO Restoration Project

Discussion in 'Old's Cool' started by tom c, Aug 14, 2019.

  1. ADVDucs33

    ADVDucs33 Been here awhile

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    The way fleamarket rolls...

    Random Guy: Where is this Ferrari 250 GTO located?
    Seller: I live in St. Augustine FL
    Random Guy: Oh. That's just too far away, if only it were closer to me. I'm in Savannah Georgia.
    Seller: :nah

    There's neat stuff in fleamarket but like most people, I've never bought from it.
    #41
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  2. Cycle Goon

    Cycle Goon Been here awhile

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    I like the idiots that ask if there's anyone you know that will be heading to where they live to bring it to them.....
    #42
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  3. tom c

    tom c Teflon Tommy Supporter

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    Carb work
    IMG_4585.JPG
    #43
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  4. OU812

    OU812 Legend in my own Mind! Supporter

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    #44
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  5. tom c

    tom c Teflon Tommy Supporter

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    Rebuild kits on the way. IMG_4594.JPG
    The ultrasonic cleaner with a mix of S100 and water really works well!
    #45
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  6. Fearless

    Fearless Brutally Honest Supporter

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    JFC, you are WAY too organized. I got me one of those devided thingies.... Got about 25 bolts in it from 15 different projects...
    #46
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  7. ADVDucs33

    ADVDucs33 Been here awhile

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    Mmmmm 4-carb jobs, I find them very rewarding. That looks like a nice set to start with, and organizers are the cats meow for dealing with banks of carbies. My cocktail for cleaning is a blend of pinesol, a dash of vinegar and water but I'll try some S100 and water next carb, always up for some experimenting.

    The project is going along nicely.
    #47
  8. tom c

    tom c Teflon Tommy Supporter

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    I know what you mean. I recently did a 2 carb job on the W650, it was only half as satisfying. :)

    I have two more organizers filled with random bits and pieces from the CB350f and CT90. Good thing though, because I lost one of the carb drain screws on the CB550 and was able to find one left over from the CB350f project.
    #48
  9. OU812

    OU812 Legend in my own Mind! Supporter

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    I like this color.
    20190919_134547.jpg
    #49
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  10. goosecreek

    goosecreek Ashes ashes all fall down Supporter

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    I now have some terrible blue bits uglying up my shop.
    #50
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  11. Cycle Goon

    Cycle Goon Been here awhile

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    Better than uglying up your bike
    #51
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  12. tom c

    tom c Teflon Tommy Supporter

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    Well let's talk about OEM muffler repair.
    Pipes #2 and #3 are in good shape - no significant rust where the header meets the pipe. Pipes #1 and #4 have lots of delamination rusting.

    This is the #4 pipe:
    [​IMG]
    I believe this is the top view - the bottom is very much the same.

    Here it is with all the easily removable rust removed:
    [​IMG]

    Here's the #1 pipe after cleaning and insertion of a bit of hose clamp to support the JB Weld ExtremeHeat temperature resistant metallic paste that I'm trying out as a cheap way to patch the holes in the OEM cans:
    [​IMG]
    [​IMG]
    And again after liberally applying said JB Weld:
    [​IMG] [​IMG]

    It does not cure very quickly at all and if you overheat it (like I did once when I hit it directly with the heat gun) the water trapped in the paste will boil and make a mess. The best thing to do is apply it and leave it be for a few days after which it gets quite hard but still fairly easy to work with a file.

    Here's after the first pass with the file:
    [​IMG]

    Finally after more filing and some time on the wire wheel, here is how it came out:
    [​IMG]
    (that's a small drain hole drilled into the fix in the same spot as the hole in the original muffler.

    [​IMG]

    I don't know how it will hold up but it was cheap and easy. The repair is continuous under the raised join line that connects the left and right muffler halves, so hopefully this and the hose clamps criscrossed underneath will keep it from blowing out. Fingers crossed.

    Also the carb rebuild kits came in so I finished them up, reinstalled them and got them balanced. It was nice to hear her start up and run and even idle smoothly after the balancing. She had started up when I bought her but did not run well at all.
    Here's a link to a video if you want to listen to her run.

    Steve has the tank and side covers and will do his best to reproduce a nice flake orange that is close to OEM Honda Flake Sunrise Orange. Then I'll have two orange bikes!
    #52
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  13. OU812

    OU812 Legend in my own Mind! Supporter

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    High heat expoxy's require either more curing time or long low heat.
    I used to do QC in epoxy factory. Lol
    #53
  14. knybanjo

    knybanjo kinda slow

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    In the days before respirators?
    #54
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  15. goosecreek

    goosecreek Ashes ashes all fall down Supporter

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    Obviously :lol3
    #55
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  16. Laconic

    Laconic Boomer Berserker Nativist Rube

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    :lol3
    #56
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  17. tom c

    tom c Teflon Tommy Supporter

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    #57
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  18. goosecreek

    goosecreek Ashes ashes all fall down Supporter

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    Well parts will get paint next week, I am pacing myself. Previous work has been stripped and the tank is now in primer. I will post pictures Monday.
    #58
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  19. Al Tuna

    Al Tuna NSFW

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    The curiosity is killing me. What code/mixture are you going with?
    #59
  20. goosecreek

    goosecreek Ashes ashes all fall down Supporter

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    Tom found a Corvette color that he liked.
    #60
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