Hello, I have a Scag Tiger Cub Model STC48V-23CV. The Kohler Command series engine is giving me an issue starting after it has set a day or so. It will crank and some times attempt to fire for a half second if you adjust the choke. After that attempt to fire, it wont try again. If you pull out the heavy duty air filters and give it a shot of Carb cleaner or ether, it will start and run. While running there is no loss of power from normal, and no misses, rough running or idling. Thanks in advance for any advice.