I have a JD LA 115 with about 10 hours.It sat for about 5 months.Charged battery and it fired right up.Ran for about 30 seconds then began 'loading up' and died.Will not restart.Plug is firing ,but seems to be too much gas coming out of spark plug hole.Took bowl off of carb and saw no signs of debris from gas 'varnishing'.Float and solenoid are moving freely.Float needle is seating.Have flushed and replaced gas.After draining fuel system and refilling,engine started and ran good for a few seconds until fuel line and filter were completely full.Then,loaded up and died again.Plug is soaked.Any help appreciated.