Craftsman tractor starting problem
First time post here, trying to resolve a frustrating starting problem. I have a 20 year old Craftsman lawn tractor with a Kohler 15HP engine. Recently I've encountered an intermittent problem while trying to start the motor. When I turn the key to start it, it will attempt to crank but stops, mimicking a dead battery condition, but the battery is not the problem. I've had it serviced, they replaced the starter and battery and did other work, but the problem persists. If I keep bumping the key on and off, it will eventually keep cranking and fire up. Once started it runs fine and always re-starts when warm. Any thoughts would be appreciated.