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Need Help My craftsman 17 hp 42in lawn tractor starts and runs great for about 5min then stalls out. I have replaced fuel line, air and fuel filter, spark plug, coil, fuel tank and top. Nothing has helped. Will run a little with the choke on. Anyone seen this before or have a suggestion. Thanx

the afterfire solenoid on the carb may not be working properly. gets hot and quits or the tip of the plunger has come off and stopping fuel flow.