I changed oil and filter..started mowing. engine started smoking. rechecked oil dip stick and it showed
over fill of oil. I was confused as I did NOT over fill the oil. As I drained some oil I found that gas
was mixing with oil.
Float needle is sticking open, allowing fuel to float straight through the carb into the cylinder, into the crankcase. Solution, clean and rebuild carb with a new float needle.
