My Troy Bilt is almost a year old. It ran fine and always starts with 1 pull until this week. I used it last week with no problems and afterward I hosed it down to get the dead grass off. When I took it out this week, it wouldnt start. I thought maybe some debris in the fuel, so I took the carb off and there was some dirt in the bottom of the bowl so I cleaned it out and put it back on. I primed it by pulling the spark plug and squirting in some gas, but it didnt run very well and only if I tipped it back. The carburetor is also now leaking so I thought the float may not be seating, so I put a kit in it and put it back on. It still leaks and while it did start after 1 pull, when I put the air filter and everything back on it, now it wont. I cant imagine why suddenly my new mower wont run and leaks gas. It does have the Briggs engine.