I have to rebuild the carb on my 810 with a K241 10HP Kohler engine. My problem is I can never get the bowl to stop leaking. The kit comes with 2 gaskets, 1 gasket is a square "O" ring and the other is a thin rubber with cut outs for the float hinge. I have the float set parallel with the bottom of the carb, new float,valve, and seat. Do you put the square "O" ring in the groove and then put the thin rubber gasket on top of the O ring. Is there some special procedure on putting this together right the first time so that the bowl doesn't leak? I always have problems with bowl gasket leaks.