Mercury - Carburetor Repair Kit Fuel System Components Precision Marine Materials 8M6010306. Overview. Any boater who's spent time around older two-strokes knows that when a carb starts acting up, you feel it immediately-rough idle, hesitation, the kind of quirky behavior that steals the joy from what should've been an easy day on the water. The Quicksilver 8M6010306 Carburetor Repair Kit brings those engines back to center. There's something comforting about knowing you can restore smooth throt