Also u might want to check the fuel solenoid if ur unit has one if its bad and in the open position the carb will flood and dump fuel. ( plunger stick down on soleniod) test this by turning switch to start postion and listen for the click of solenoid and, if no click solenoid is bad. This solenoid closees to shut off fuel to needle when u shut off the mower. When u turn switch to start u grt a click from which the soleniod opens to let fuel in via needle and, when u shut mowrr off the switch clicks plunger up to shut of fuel. Hope this helps!:thumbsup: