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. Does restart but repeats problem. This was the first mow of the season. Had run all gas out for winter. Used fresh gas to start. Know I need a new battery as I can put a charger on the current (orginal) battery and get mower started but should have anything to do with the stalling? Changed oil and oil filter and air filter. Have not changed gas filter or spark plug. Please advise, Thanks.
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