unknown Carburetor for '72 cb350

Discussion in 'Motorbike Technical Discussion' started by jasonsle, Apr 28, 2008.

  1. jasonsle

    jasonsle Guest

    Hey, how can I tell what kind of carburetor is installed in my bike?
    The owner before me put in these carbs that are a lot bigger than
    stock, and frankly I think it was a crap job.

    When I bought the bike, it was idling at 3K rpm, and after I bought
    it, it won't start. I want to go to stock carbs, but that costs a
    lot, and I already have burnt a lot of money buying some tools, so I
    would like to at least figure out if I could just re-jet them.

    Somebody tell me how I can figure out the carb model? All I know is
    that they say "HIN" which I assume are the brand.
     
    jasonsle, Apr 28, 2008
    #1
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  2. Google is your friend.
     
    The Older Gentleman, Apr 28, 2008
    #2
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  3. jasonsle

    . Guest

    Keihin...

    If you could take a digital picture and post it to some free photo
    page, somebody might know what they are.

    Another way would be to go to www.bikebandit.com and look through the
    online parts fiches until you see something that looks like your
    carbs.

    There are two basic types of carbs used on Hondas of that era.

    One is the traditional slide type carb which had a cylindrical slide
    and no throttle butterfly. That type probably had a plate type choke
    upstream of the slide.

    The other basic type is the constant velocity (or constant vacuum) CV
    carb which either had a
    vacuum operated piston upstream of the throttle butterfly, or it had a
    rubber diaphragm to operate the vacuum slide upstream of the
    butterfly.
     
    ., Apr 28, 2008
    #3
  4. jasonsle

    TOG@Toil Guest


    FFS. Just Google for the specs for an old CB350.

    I never cease to be amazed by the number of people who ask the most
    basic questions here, the answers for which they could find themselves
    in five minutes, if they could but get off their arses.

    Guess what? I've just done that and got the answer, top of the search
    list.
     
    TOG@Toil, Apr 28, 2008
    #4
  5. FFS, for an editor your reading comprehension skills are sometimes crap!
    Google's a mind-reader now?
     
    Dr Ivan D. Reid, Apr 28, 2008
    #5
  6. jasonsle

    TOG@Toil Guest

    Aren't they, just? I am suitably abashed. Ho hum.
     
    TOG@Toil, Apr 28, 2008
    #6
  7. jasonsle

    . Guest

    Google has a crystal ball, dincha know?

    But nobody needs a polished ball to predict that The Old Grouch is
    going to behave like an asshole. That's a given.
     
    ., Apr 28, 2008
    #7
  8. Who gives a gracious apology when he is in the wrong. Unlike you.
     
    The Older Gentleman, Apr 28, 2008
    #8
  9. jasonsle

    . Guest

    Nobody here owes you *shit*. Get that through your head.
     
    ., Apr 28, 2008
    #9
  10. <Puzzled>

    Did I ever say they did?

    You're losing it, you know. You really, really need to see a shrink.
     
    The Older Gentleman, Apr 29, 2008
    #10
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