Honda BF35 - BF50 carburetor flange marking

ErSa

Seaman Apprentice
Joined
Jan 23, 2022
Messages
46
Is there a system on Honda BF35A to Honda BF50A flange markings on the caburetors?
It seems to a system as below?
BF35A - ex. 12AA HA09 or 12AA FFT or 12AB RH05
BF45A - ex. 31AA ND16
BF50A - ex. 31BC OF15 or 31CB UF27 or 31AA DJ06
Please explan so I can identifie a carburetor then I bye one from the scrap yard.
 
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