Small Engine Troubleshooting Problems? Ask a Mechanic Now.
When it dies, how long before it will start again? Have you checked it for spark at the plug when it quits?
Kohler single cylinder engine? CV490S-27509
Seems like is not coil, as it would not restart, so fuel issue. Does it run any longer or shorter on restart? There is a fuel solenoid in the bottom of the carburetor, it may be shutting fule off. It has to have 12 volts at all times. It may be getting ht and closing the main jet in the carburetor.