Here are the details I have a Montgomery Ward (Gilson) garden tractor. Here are the numbers. Tractor model number GIL 3355C It has a 16 hp Briggs engine 326437-0135-03-74012. The problem is I have spark, engine turns over very good, I have rebuilt the carb but It still does not start. I have clear premium gas in the tank. I am at a stand still and don't know where to go from here. If anyone has some suggestions that would be great. Thanks