Lawn mower runs for 3 seconds then dies...
My 5 yr old B&S 4.5HP push mower ran OK for a few mowings this year but now has this problem. I replaced the spark plug and air filter, no luck. Then realized I was using year old gas so drained the gas and filled with new. Primed the heck out of it, and it started like normal...then it died again. I also notice a little bit of gas leaking out of the primer when pushed but no gas in or around the air filter. Thoughts?