Correct Carb needle #s for 73 CB450
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Thread: Correct Carb needle #s for 73 CB450

  1. #1
    Senior Member misterguitar's Avatar
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    Correct Carb needle #s for 73 CB450

    I have a 73 CB450 I'm going through. I just soda blasted the carbs so they look all nice and pretty. the carbs APPEAR to have all the original Keihin brass. I can't tell about these needles though. Is there a good reference chart for all the 450 years as to what model carbs they had and what jet and needle#'s they had originally?

  2. #2
    Sensei 66Sprint's Avatar
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    More important would be what carbs you actually have..... Number is on flat just above carb bowl, facing the air-cleaner...
    "I have a mind like a steel trap.....Old and rusty, of antiquated design, and hard to get stuff back out of...."
    Contact info: E-mail; [email protected] Phone; 540-525-5199

  3. #3
    Senior Member tbpmusic's Avatar
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    All CB/CL through K4 (including K0) used needle # 16012-292-004 - this would be with 14H carbs (except K0).
    Later models (including 500T) used needle # 16012-346-004, with later 7xx series carbs.
    Always stick with your old brass if possible - modern aftermarkets are junk.
    Bill Lane
    Honda Twins Founding Member

    No advice, just info

    '75 CB200T, '71 CB450 K4 Half-Breed, '72 CL350 (Sold), '81 CM200T, '72 C70M
    and a little red Chineeze scooter

    http://www.bikeexif.com/honda-cb450-restoration

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  5. #4
    Senior Member WintrSol's Avatar
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    Interesting ... my list shows the first 5 digits of the part numbers are 16151 and 16113, respectively.
    Rick

    Mine is a mostly 1970 CB450K3

  6. #5
    Senior Member tbpmusic's Avatar
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    Here's the one I trust the most....https://shop.smithscyclecenter.com/OEMpartfinder.htm
    Bill Lane
    Honda Twins Founding Member

    No advice, just info

    '75 CB200T, '71 CB450 K4 Half-Breed, '72 CL350 (Sold), '81 CM200T, '72 C70M
    and a little red Chineeze scooter

    http://www.bikeexif.com/honda-cb450-restoration

  7. #6
    Sensei 66Sprint's Avatar
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    Presumably, you want the actual number that is stamped into the needle, NOT the part number anyway..... My 14 H carbs have 053000 needles in them...
    "I have a mind like a steel trap.....Old and rusty, of antiquated design, and hard to get stuff back out of...."
    Contact info: E-mail; [email protected] Phone; 540-525-5199

  8. #7
    Senior Member tbpmusic's Avatar
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    Quote Originally Posted by 66Sprint View Post
    Presumably, you want the actual number that is stamped into the needle, NOT the part number anyway..... My 14 H carbs have 053000 needles in them...
    Was this the right side 14H you were going to send me?? (hint, hint)
    Bill Lane
    Honda Twins Founding Member

    No advice, just info

    '75 CB200T, '71 CB450 K4 Half-Breed, '72 CL350 (Sold), '81 CM200T, '72 C70M
    and a little red Chineeze scooter

    http://www.bikeexif.com/honda-cb450-restoration

  9. #8
    Sensei 66Sprint's Avatar
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    Nope, that one is all boxed up, but haven't got out to send it yet......
    "I have a mind like a steel trap.....Old and rusty, of antiquated design, and hard to get stuff back out of...."
    Contact info: E-mail; [email protected] Phone; 540-525-5199

  10. #9
    Senior Member misterguitar's Avatar
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    Carbs are 723A
    Needles are D52301

    I know the reproductions are crap. I didn't see the tiny K on the needle so Iw as tryito deduc eif they were Keihin or replacements. They have a plastic chuck on them so maybe that covers it up?

  11. #10
    Junior Member Marcus17's Avatar
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    Carb models & jet sizes

    Here's a chart I found with carb models & jet sizes.

    https://docs.google.com/spreadsheets...it?usp=sharing

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