A guy brought in his Troy Bilt walk behind. Bought it last year, worked perfectly last weekend, but now it won't start. I fiddled with it, and got it to sort of fire, then promptly died.
I took it in back, and removed the spark plug. It was wet, but with water, not gas...hmm? I pulled off the air filter cover, and the filter was soaking wet with water. Water was in the carb throat....hit with a little carb cleaner, put in a new plug, replaced the fuel in the tank, and it ran like new.
Upon speaking with the owner, and informing him of what I found, He told me "it's always stored in the garage, but maybe his wife turned on the sprinklers the last time he mowed".....Huh?