Thanks for your help. I will run Sea Foam in high dosing all year with high octane fuel and see if that clears it up. If not I will take it in for service.
I am having trouble starting my Hasqvana YTH22V42. I changed the spark plug but I suspect it is not getting gas. I am able to get it running by spraying a quick spray of starting fluid next to the air filter. Then it will run until I turn it off, and even restart. But if I let it cool down or...