HONDA CB550 FOUR CARBS IN USED CONDITION 1977/78 MODELS. CARBS SHOWING SIGNS OF WEAR AND TEAR USE AND AGE. I CANNOT CONFIRM WHEN THE CARBS WERE LAST USED IN SERVICE. THE CARBS HAVE NOT BEEN TESTED IN ANY WAY, NOR USED IN SERVICE, FROM A VISUAL INSPECTION ALL LOOKS AS IT SHOULD.