Carburetor problems

Casey Neiman

New Member
. I have a honda ct90 that I inherited. The original engine was not good so I put one from a 90 cub on it, they both have the same carburetor and I can't find one like it. The frame serial number is CT 90-113008. The tag on the front frame just says made in Japan. The number on the engine is CM 91E-114582. The numbers on the keihin carb are M191A, there is also two letters DK on the opposite side of the flange. I am trying to find a new carb or a kit to fit but can't find a definitive fit. I found a thread from someone who has the same problem but can't find it again!!
I would like to find the year and model of the frame too.
Thanks
 
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