I'm posting this for a friend. He has a 1999 Grasshopper 725 G2 with a liquid cooled Kubota 3 cylinder gas engine. He said that in the mornings it won't start. He has to shoot carburetor cleaner directly into the carburetor to get it to fire up. After that, it will start any time for the rest of he day. But the next morning, the process starts all over. It has a manual choke, but that doesn't seem to help. Any ideas?