On Apr 2, 12:50*pm, (hillclimber)
wrote:
Have a 18 hp Kholer engine (model # CV492)on a 42" Craftsman lawn tractor
(7 years old). Problem is starts OK and runs for 20 minutes or so and then
starts to stall and lose power.

check the gas cap, there should be a small vent hole, if it is clogged
the engine will stall when the fuel use creates enough suction in the
tank..

Mark