Mercury – Weber 4-Barrel Carburetor Repair Kit | Carburetion System | Precision Marine Components | 8M0120193Mercury Weber 4 Barrel Carburetor Repair Kit Carburetion System Precision Marine Components 8M0120193 Overview If youve ever run an older MerCruiser and felt it hesitate for just a moment when you drop the throttle, you know how much a healthy carburetor matters. Boats from the late eighties and nineties have a certain charmtheyre tough, familiar, and full of memories. But they only stay dependable when the carb is sealed, synced, and breathing the