in a fluid jet loom in general , the loom operation is not stopped immediately after detection of the defective weft yarn , resulting unavoidably in the insertion of the next weft yarn . in this regard , the present invention provides a method for disposal of the defective weft yarn in a fluid jet loom which consists in temporarily disabling the weft yarn cutting function of a weft yarn cutter provided to the weft yarn inserting nozzle upon detection of defective weft yarn insertion , and subsequently stopping the loom operation .