George, What was the carb kit number for a 1952 cub, I am looking at a Valu-Bilt cataloge, the carb on my cub is 251234R93 and the cub manual doesn't show that number but says 63349c1 was the carb on serial # 312389 and below so I am guessing the kit for the 63349c1 is the one for this carb?? thanks Don