Mercury – Quicksilver 823427A1 Rochester 2-Barrel Carburetor Repair Kit | MerCruiser GM 4- & 6-Cylinder Engines (1964–1983) | 823427A1Mercury Quicksilver 823427A1 Rochester 2 Barrel Carburetor Repair Kit MerCruiser GM 4 & 6 Cylinder Engines (19641983) 823427A1 Overview If your old MerCruiser isnt running like it used to maybe it stumbles, idles rough, or burns extra fuel your carburetor might be due for a rebuild. The Quicksilver 823427A1 Rochester 2 Barrel Carburetor Repair Kit gives you everything you need to restore clean, efficient fuel delivery on 19641983 MerCruiser 4 and 6