Kohler XT 6.5 149cc (Won't Start)

Have a Kohler XT 6.5 149cc that won't start unless I close the throttle by hand. I have cleaned the carburetor and air filter, checked the smart choke and checked for spark. Once I get it started, it runs great and will restart, but if I let it sit, it will not without closing the throttle by hand. Any help is greatly appreciated.

Think I have it fixed. Fuel filter was not dirty, but it was slightly kinked. Fixed and fired right up.