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needle diaphragms

  1. '81 CB900c, lack of power, high rev bogging. Carbs been rebuilt, no air leaks.

    CBR Pit
    I work on a lot of different things for a lot of different people. This project is an 81 CB900C,. The carbs were taken out and cleaned, then a rebuild kit was bought (this is where I come in) I rebuilt the carbs. Upon reinstall, everything went smooth until the start up. Sputtering, backfiring...