Topic: '75 CB550 Keihin Carb Question

[88BuckMeister]

Does anyone know off hand which model Keihin carb came on the 1975 CB550? I'm thinking I have to rejet my carbs, and I've found jetting kits that come with an assortment. Obviously based on some awesome advise from you all, not a permanent solution as name brand jets will be used once the proper jetting size is found, but I think I need the model of the carbs to ensure compatability for the jet kits. Thanks

[denward17]

Probably 022A, but you really need to check the stamp on the side of each carb.

[calj737]

Not all brands of jets and needles are the same, despite their “sizes”. Needles and emulsion tubes differ the most from stock, and main/idle jets unless Keihin have had issues with sealing. Just to inform you…

[Deltarider]

Here is the overview.