ronjhall
Super Star Member
I have a Craftsman garden tractor that does a similar thing when hot... I attempted cleaning the carb, replaced the fuel pump and filter, made sure the tank breather was working. Even adjusted the valves. All to no avail. The symptoms got a little better, but not fixed. My next step is to get a cheapie carb off eBay.... about 30 bucks... factory replacement about $90.
Try some Berryman Chemtool B-12. Engine is probably running lean and hot from a partially blocked carburetor fuel jet. Sold at Walmart.